Atmel SAM4SD32B Instruction Manual

Features
•Core
– ARM®Cortex®-M4 with a 2 Kbytes cache running at up to 120 MHz
– Memory Protection Unit (MPU)
– DSP Instruction Set
–Thumb
®-2 instruction set
•Pin-to-pin compatible with SAM3N, SAM3S products (64- and 100- pin versions) and
SAM7S legacy products (64-pin version)
•Memories
– Up to 2048 Kbytes embedded Flash with optional dual bank and cache memory
– Up to 160 Kbytes embedded SRAM
– 16 Kbytes ROM with embedded boot loader routines (UART, USB) and IAP routines
– 8-bit Static Memory Controller (SMC): SRAM, PSRAM, NOR and NAND Flash
support
•System
– Embedded voltage regulator for single supply operation
– Power-on-Reset (POR), Brown-out Detector (BOD) and Watchdog for safe operation
– Quartz or ceramic resonator oscillators: 3 to 20 MHz main power with Failure
Detection and optional low-power 32.768 kHz for RTC or device clock
– RTC with Gregorian and Persian Calendar mode, waveform generation in low-
power modes
– RTC clock calibration circuitry for 32.768 kHz crystal frequency compensation
– High precision 8/12 MHz factory trimmed internal RC oscillator with 4 MHz default
frequency for device startup. In-application trimming access for frequency
adjustment
– Slow Clock Internal RC oscillator as permanent low-power mode device clock
– Two PLLs up to 240 MHz for device clock and for USB
– Temperature Sensor
– Up to 22 Peripheral DMA (PDC) Channels
•Low Power Modes
– Sleep and Backup modes, down to 1 µA in Backup mode
– Ultra low-power RTC
•Peripherals
– USB 2.0 Device: 12 Mbps, 2668 byte FIFO, up to 8 bidirectional Endpoints. On-Chip
Transceiver
– Up to 2 USARTs with ISO7816, IrDA®, RS-485, SPI, Manchester and Modem Mode
– Two 2-wire UARTs
– Up to 2 Two Wire Interface (I2C compatible), 1 SPI, 1 Serial Synchronous Controller
(I2S), 1 High Speed Multimedia Card Interface (SDIO/SD Card/MMC)
– 2 Three-Channel 16-bit Timer/Counter with capture, waveform, compare and PWM
mode. Quadrature Decoder Logic and 2-bit Gray Up/Down Counter for Stepper Motor
– 4-channel 16-bit PWM with Complementary Output, Fault Input, 12-bit Dead Time
Generator Counter for Motor Control
– 32-bit Real-time Timer and RTC with calendar and alarm features
– Up to 16-channel, 1Msps ADC with differential input mode and programmable gain
stage and auto calibration
– One 2-channel 12-bit 1Msps DAC
– One Analog Comparator with flexible input selection, Selectable input hysteresis
– 32-bit Cyclic Redundancy Check Calculation Unit (CRCCU)
– Write Protected Registers
•I/O
– Up to 79 I/O lines with external interrupt capability (edge or level sensitivity),
debouncing, glitch filtering and on-die Series Resistor Termination
– Three 32-bit Parallel Input/Output Controllers, Peripheral DMA assisted Parallel
Capture Mode
•Packages
– 100-lead LQFP, 14 x 14 mm, pitch 0.5 mm/100-ball TFBGA, 9 x 9 mm, pitch
0.8 mm/100-ball VFBGA, 7 x 7 mm, pitch 0.65 mm
– 64-lead LQFP, 10 x 10 mm, pitch 0.5 mm/64-lead QFN 9x9 mm, pitch 0.5 mm
AT91SAM
ARM-based
Flash MCU
SAM4S Series
Preliminary
Datasheet
11100B–ATARM–31-Jul-12

211100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
1. Description The Atmel SAM4S series is a member of a family of Flash microcontrollers based on the high
performance 32-bit ARM Cortex-M4 RISC processor. It operates at a maximum speed of
120 MHz and features up to 2048 Kbytes of Flash, with optional dual bank implementation and
cache memory, and up to 160 Kbytes of SRAM. The peripheral set includes a Full Speed USB
Device port with embedded transceiver, a High Speed MCI for SDIO/SD/MMC, an External Bus
Interface featuring a Static Memory Controller providing connection to SRAM, PSRAM, NOR
Flash, LCD Module and NAND Flash, 2x USARTs, 2x UARTs, 2x TWIs, 3x SPI, an I2S, as well
as 1 PWM timer, 2x three channel general-purpose 16-bit timers (with stepper motor and
quadrature decoder logic support), an RTC, a 12-bit ADC, a 12-bit DAC and an analog
comparator.
The SAM4S series is ready for capacitive touch thanks to the QTouch®library, offering an easy
way to implement buttons, wheels and sliders.
The SAM4S device is a medium range general purpose microcontroller with the best ratio in
terms of reduced power consumption, processing power and peripheral set. This enables the
SAM4S to sustain a wide range of applications including consumer, industrial control, and PC
peripherals.
It operates from 1.62V to 3.6V.
The SAM4S series is pin-to-pin compatible with the SAM3N, SAM3S series (64- and 100-pin
versions) and SAM7S legacy series (64-pin versions).

3
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
1.1 Configuration Summary
The SAM4S series devices differ in memory size, package and features. Table 1-1 summarizes
the configurations of the device family.
Notes: 1. One channel is reserved for internal temperature sensor.
2. Full Modem support on USART1.
Table 1-1. Configuration Summary
Feature SAM4SD32C SAM4SD32B SAM4SD16C SAM4SD16B SAM4SA16C SAM4SA16B SAM4S16C SAM4S16B SAM4S8C SAM4S8B
Flash 2 x 1024 Kbytes 2 x 1024 Kbytes 2 x 512 Kbytes 2 x 512 Kbytes 1024 Kbytes 1024 Kbytes 1024 Kbytes 1024 Kbytes 512 Kbytes 512 Kbytes
SRAM 160 Kbytes 160 Kbytes 160 Kbytes 160 Kbytes 160 Kbytes 160 Kbytes 128 Kbytes 128 Kbytes 128 Kbytes 128 Kbytes
HCACHE 2KBytes 2KBytes 2KBytes 2KBytes 2KBytes 2KBytes - - - -
Package
LQFP 100
TFBGA 100
VFBGA 100
LQFP 64
QFN 64
LQFP 100
TFBGA 100
VFBGA 100
LQFP 64
QFN 64
LQFP 100
TFBGA 100
VFBGA 100
LQFP 64
QFN 64
LQFP 100
TFBGA 100
VFBGA 100
LQFP 64
QFN 64
LQFP 100
TFBGA 100
VFBGA 100 LQFP 64
QFN 64
Number of
PIOs 79 47 79 47 79 47 79 47 79 47
External
Bus
Interface
8-bit data,
4chip selects,
24-bit address -8-bit data,
4chip selects,
24-bitaddress -8-bit data,
4chip selects,
24-bitaddress -8-bit data,
4chip selects,
24-bitaddress -8-bit data,
4chip selects,
24-bitaddress -
12-bit ADC 16 ch.(1) 11 ch.(1) 16 ch.(1) 11 ch.(1) 16 ch.(1) 11 ch.(1) 16 ch.(1) 11 ch.(1) 16 ch.(1) 11 ch.(1)
12-bit DAC 2 ch. 2 ch. 2 ch. 2 ch. 2 ch. 2 ch. 2 ch. 2 ch. 2 ch. 2 ch.
Timer
Counter
Channels 6363636363
PDC
Channels 22 22 22 22 22 22 22 22 22 22
USART/
UART 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2) 2/2(2)
HSMCI 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits

411100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
2. Block Diagram
Figure 2-1. SAM4S16, S8 Series 100-pin version Block Diagram
PLLA
SystemController
WDT
RTT
Osc 32 kHz
SUPC
RSTC
8GPBREG
3-20 MHz
Osc
POR
RTC
RC 32 kHz
SM
RC Osc
12/8/4 MHz
I/D S
MPU
N
V
I
C
4-layer AHB Bus Matrix Fmax 120 MHz
ADC Ch.
PLLB
PMC
PIOA / PIOB / PIOC
PIO
External Bus
Interface D[7:0]
PIODC[7:0]
A[0:23]
A21/NANDALE
A22/NANDCLE
NCS0
NCS1
NCS2
NCS3
NRD
NWE
NANDOE
NANDWE
NWAIT
High Speed MCI
DATRG PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
DAC0
DAC1
Timer Counter B
Timer Counter A
TC[3..5]
TC[0..2]
TIOA[3:5]
TIOB[3:5]
TCLK[3:5]
AD[0..14]
RXD1
TXD1
USART1
USART0
UART1
UART0
SCK1
RTS1
CTS1
DSR1
DTR1
RI1
DCD1
NAND Flash
Logic
TWCK0
TWD0
TWD1
URXD0
UTXD0
URXD1
UTXD1
RXD0
TXD0
SCK0
RTS0
CTS0
TWCK1
ADVREF
TIOB[0:2]
TCLK[0:2]
PWMH[0:3]
PWML[0:3]
PWMFI0
ADTRG
TIOA[0:2]
TST
PCK0-PCK2
XIN
NRST
VDDCORE
XOUT
RTCOUT0
RTCOUT1
XIN32
XOUT32
ERASE
VDDPLL
VDDIO
12-bit DAC
Temp. Sensor
PWM
12-bit ADC
TWI0
TWI1
SPI
SSC
PIO
Static Memory
Controller
Analog
Comparator
CRC Unit
Peripheral
Bridge
2668
Bytes
FIFO
USB 2.0
Full
Speed
Transceiver
NPCS0
PIODCCLK
PIODCEN1
PIODCEN2
NPCS1
NPCS2
NPCS3
MISO
MOSI
SPCK
MCDA[0..3]
MCCDA
MCCK
TF
TK
TD
RD
RK
RF
DDP
DDM
ADVREF
ROM
16 Kbytes
FLASH
1024 Kbytes
512 Kbytes
Flash
Unique
Identifier
User
Signature
TDI
TDO
TMS/SWDIO
TCK/SWCLK
JTAGSEL
Voltage
Regulator
VDDIN
VDDOUT
Cortex-M4 Processor
Fmax 120 MHz
In-Circuit Emulator
JTAG & Serial Wire
24-Bit
SysTick Counter
DSP
SRAM
128Kbytes

5
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Figure 2-2. SAM4S16, S8 Series 64-pin version Block Diagram
PLLA
SystemController
WDT
RTT
Osc 32 kHz
SUPC
RSTC
8GPBREG
3-20 MHz
Osc
POR
RTC
RC 32 kHz
SM
RC Osc
12/8/4 MHz
I/D S
MPU
N
V
I
C
4-layer AHB Bus Matrix Fmax 120 MHz
ADC Ch.
PLLB
PMC
PIOA / PIOB
PIODC[7:0]
High Speed MCI
DATRG PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
DAC0
DAC1
Timer Counter A
TC[0..2]
AD[0..9]
RXD1
TXD1
USART1
USART0
UART1
UART0
SCK1
RTS1
CTS1
DSR1
DTR1
RI1
DCD1
TWCK0
TWD0
TWD1
URXD0
UTXD0
URXD1
UTXD1
RXD0
TXD0
SCK0
RTS0
CTS0
TWCK1
ADVREF
TIOB[0:2]
TCLK[0:2]
PWMH[0:3]
PWML[0:3]
PWMFI0
ADTRG
TIOA[0:2]
TST
PCK0-PCK2
XIN
NRST
VDDCORE
XOUT
RTCOUT0
RTCOUT1
XIN32
XOUT32
ERASE
VDDPLL
VDDIO
12-bit DAC
Temp. Sensor
PWM
12-bit ADC
TWI0
TWI1
SPI
SSC
PIO
Analog
Comparator
CRC Unit
Peripheral
Bridge
2668
Bytes
FIFO
USB 2.0
Full
Speed
Transceiver
NPCS0
PIODCCLK
PIODCEN1
PIODCEN2
NPCS1
NPCS2
NPCS3
MISO
MOSI
SPCK
MCDA[0..3]
MCCDA
MCCK
TF
TK
TD
RD
RK
RF
DDP
DDM
ADVREF
TDI
TDO
TMS/SWDIO
TCK/SWCLK
JTAGSEL
Voltage
Regulator
VDDIN
VDDOUT
Cortex-M4 Processor
Fmax 120 MHz
In-Circuit Emulator
JTAG & Serial Wire
24-Bit
SysTick Counter
PIO
PIO
DSP
ROM
16 Kbytes
FLASH
1024 Kbytes
512 Kbytes
Flash
Unique
Identifier
User
Signature
SRAM
128Kbytes

611100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Figure 2-3. SAM4SD32, SD16, SA16 100-pin version Block Diagram
PLLA
TST
PCK0-PCK2
XIN
NRST
VDDCORE
XOUT
WDT
RTT
OSC 32k
XIN32
XOUT32
SUPC
RSTC
8GPBREG
3-20 MHz
Osc.
POR
RTC
RC 32k
SM
RC
12/8/4 M
ERASE
TDI
TDO
TMS/SWDIO
TCK/SWCLK
JTAGSEL
ID
Voltage
Regulator
VDDIN
VDDOUT
SPI
TC[0..2]
DAC
ADVREF PDC
NPCS0
PIODCCLK
PIODCEN1
PIODCEN2
NPCS1
NPCS2
NPCS3
MISO
MOSI
SPCK
MCDA[0..3]
MCCDA
MCCK
TCLK[0:2]
Temp. Sensor
PDC
TWI0 PDC
TWD0
PWM
PDC
TF
TK
TD
RD
RK
RF
DDP
DDM
MPU
N
V
I
C
24-Bit
SysTick Counter
4-layer AHB Bus Matrix Fmax 120 MHz
TWI1 PDC
TWCK1
TWD1
PWMH[0:3]
PWML[0:3]
PWMFI0
PDC
UART0
UART1
URXD0
UTXD0
URXD1
UTXD1
SSC
Peripheral
Bridge
PDC
PIO
PDC
PDC
2668
Bytes
FIFO
USB 2.0
Full
Speed
VDDPLL
VDDIO
PDC
RXD0
TXD0 USART0
SCK0
RTS0
CTS0
Analog
Comparator
CRC Unit
ADC
Transceiver
PLLB
In-Circuit Emulator
JTAG & Serial Wire Flash
Unique
Identifier
PMC
PIOA / PIOB / PIOC
ADTRG
Cortex-M4 Processor
Fmax 120 MHz
Timer Counter A
Timer Counter B
TWCK0
FLASH
2*1024 KBytes
2*512 KBytes
1024 KBytes
SRAM
160 KBytesROM
16 KBytes
RTCOUT1
RTCOUT0
DSP
CMCC
(2 KB cache)
PIO
External Bus
Interface D[7:0]
PIODC[7:0]
A[0:23]
A21/NANDALE
A22/NANDCLE
NCS0
NCS1
NCS2
NCS3
NRD
NWE
NANDOE
NANDWE
NWAIT
High Speed MCI
PDC
DATRG PDC
DAC0
DAC1
TC[3..5]
TIOA[3:5]
TIOB[3:5]
TIOA[0:2]
TIOB[0:2]
TCLK[3:5]
AD[0..14]
PDC
RXD1
TXD1
USART1
SCK1
RTS1
CTS1
DSR1
DTR1
RI1
DCD1
NAND Flash
Logic
Static Memory
Controller
ADC
DAC
Temp Sensor
ADVREF

7
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Figure 2-4. SAM4SD32, SD16, SA16 64-pin version Block Diagram
PLLA
SystemController
WDT
RTT
Osc 32 kHz
SUPC
RSTC
8GPBREG
3-20 MHz
Osc
POR
RTC
RC 32 kHz
SM
RC Osc
12/8/4 MHz
MPU
N
V
I
C
4-layer AHB Bus Matrix Fmax 120 MHz
ADC Ch.
PLLB
PMC
PIOA / PIOB
PIODC[7:0
High Speed MCI
DATRG PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
PDC
DAC0
DAC1
Timer Counter A
TC[0..2]
AD[0..9]
RXD1
TXD1
USART1
USART0
UART1
UART0
SCK1
RTS1
CTS1
DSR1
DTR1
RI1
DCD1
TWCK0
TWD0
TWD1
URXD0
UTXD0
URXD1
UTXD1
RXD0
TXD0
SCK0
RTS0
CTS0
TWCK1
ADVREF
TIOB[0:2]
TCLK[0:2]
PWMH[0:3]
PWML[0:3]
PWMFI0
ADTRG
TIOA[0:2]
TST
PCK0-PCK2
XIN
NRST
VDDCORE
XOUT
RTCOUT0
RTCOUT1
XIN32
XOUT32
ERASE
VDDPLL
VDDIO
12-bit DAC
Temp. Sensor
PWM
12-bit ADC
TWI0
TWI1
SPI
SSC
PIO
Analog
Comparator
CRC Unit
Peripheral
Bridge
2668
Bytes
FIFO
USB 2.0
Full
Speed
Transceiver
NPCS0
PIODCCLK
PIODCEN
PIODCEN2
NPCS1
NPCS2
NPCS3
MISO
MOSI
SPCK
MCDA[0..3
MCCDA
MCCK
TF
TK
TD
RD
RK
RF
DDP
DDM
ADVREF
Flash
Unique
Identifier
TDI
TDO
TMS/SWDIO
TCK/SWCLK
JTAGSEL
Voltage
Regulator
VDDIN
VDDOUT
Cortex-M4 Processor
Fmax 120 MHz
In-Circuit Emulator
JTAG & Serial Wire
24-Bit
SysTick Counter
PIO
PIO
DSP
ROM
16 KBytes
ID
FLASH
2*1024 KBytes
2*512 KBytes
1024 KBytes
SRAM
160 KBytes
CMCC
(2 KB cache)

811100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
3. Signal Description
Table 3-1 gives details on signal names classified by peripheral.
Table 3-1. Signal Description List
Signal Name Function Type Active Level Voltage reference Comments
Power Supplies
VDDIO Peripherals I/O Lines and USB transceiver
Power Supply Power 1.62V to 3.6V
VDDIN Voltage Regulator Input, ADC, DAC and
Analog Comparator Power Supply Power 1.62V to 3.6V(4)
VDDOUT Voltage Regulator Output Power 1.2V Output
VDDPLL Oscillator and PLL Power Supply Power 1.08 V to 1.32V
VDDCORE Power the core, the embedded memories
and the peripherals Power 1.08V to 1.32V
GND Ground Ground
Clocks, Oscillators and PLLs
XIN Main Oscillator Input Input
VDDIO
Reset State:
- PIO Input
- Internal Pull-up disabled
- Schmitt Trigger enabled(1)
XOUT Main Oscillator Output Output
XIN32 Slow Clock Oscillator Input Input
XOUT32 Slow Clock Oscillator Output Output
PCK0 - PCK2 Programmable Clock Output Output
Reset State:
- PIO Input
- Internal Pull-up enabled
- Schmitt Trigger enabled(1)
Real Time Clock
RTCOUT0 Programmable RTC waveform output Output
VDDIO
Reset State:
- PIO Input
- Internal Pull-up enabled
- Schmitt Trigger enabled(1)
RTCOUT1 Programmable RTC waveform output Output
Serial Wire/JTAG Debug Port - SWJ-DP
TCK/SWCLK Test Clock/Serial Wire Clock Input
VDDIO
Reset State:
- SWJ-DP Mode
- Internal pull-up disabled(5)
- Schmitt Trigger enabled(1)
TDI Test Data In Input
TDO/TRACESWO Test Data Out / Trace Asynchronous Data
Out Output
TMS/SWDIO Test Mode Select /Serial Wire Input/Output Input / I/O
JTAGSEL JTAG Selection Input High Permanent Internal
pull-down

9
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Flash Memory
ERASE Flash and NVM Configuration Bits Erase
Command Input High VDDIO
Reset State:
- Erase Input
- Internal pull-down enabled
- Schmitt Trigger enabled(1)
Reset/Test
NRST Synchronous Microcontroller Reset I/O Low VDDIO Permanent Internal
pull-up
TST Test Select Input Permanent Internal
pull-down
Universal Asynchronous Receiver Transceiver - UARTx
URXDx UART Receive Data Input
UTXDx UART Transmit Data Output
PIO Controller - PIOA - PIOB - PIOC
PA0 - PA31 Parallel IO Controller A I/O
VDDIO
Reset State:
- PIO or System IOs(2)
- Internal pull-up enabled
- Schmitt Trigger enabled(1)
PB0 - PB14 Parallel IO Controller B I/O
PC0 - PC31 Parallel IO Controller C I/O
PIO Controller - Parallel Capture Mode
PIODC0-PIODC7 Parallel Capture Mode Data Input
VDDIOPIODCCLK Parallel Capture Mode Clock Input
PIODCEN1-2 Parallel Capture Mode Enable Input
External Bus Interface
D0 - D7 Data Bus I/O
A0 - A23 Address Bus Output
NWAIT External Wait Signal Input Low
Static Memory Controller - SMC
NCS0 - NCS3 Chip Select Lines Output Low
NRD Read Signal Output Low
NWE Write Enable Output Low
NAND Flash Logic
NANDOE NAND Flash Output Enable Output Low
NANDWE NAND Flash Write Enable Output Low
High Speed Multimedia Card Interface - HSMCI
MCCK Multimedia Card Clock I/O
MCCDA Multimedia Card Slot A Command I/O
MCDA0 - MCDA3 Multimedia Card Slot A Data I/O
Table 3-1. Signal Description List (Continued)
Signal Name Function Type Active Level Voltage reference Comments

10 11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
Universal Synchronous Asynchronous Receiver Transmitter USARTx
SCKx USARTx Serial Clock I/O
TXDx USARTx Transmit Data I/O
RXDx USARTx Receive Data Input
RTSx USARTx Request To Send Output
CTSx USARTx Clear To Send Input
DTR1 USART1 Data Terminal Ready I/O
DSR1 USART1 Data Set Ready Input
DCD1 USART1 Data Carrier Detect Output
RI1 USART1 Ring Indicator Input
Synchronous Serial Controller - SSC
TD SSC Transmit Data Output
RD SSC Receive Data Input
TK SSC Transmit Clock I/O
RK SSC Receive Clock I/O
TF SSC Transmit Frame Sync I/O
RF SSC Receive Frame Sync I/O
Timer/Counter - TC
TCLKx TC Channel x External Clock Input Input
TIOAx TC Channel x I/O Line A I/O
TIOBx TC Channel x I/O Line B I/O
Pulse Width Modulation Controller- PWMC
PWMHx PWM Waveform Output High for channel x Output
PWMLx PWM Waveform Output Low for channel x Output
only output in
complementary mode
when dead time insertion
is enabled.
PWMFI0 PWM Fault Input Input
Serial Peripheral Interface - SPI
MISO Master In Slave Out I/O
MOSI Master Out Slave In I/O
SPCK SPI Serial Clock I/O
SPI_NPCS0 SPI Peripheral Chip Select 0 I/O Low
SPI_NPCS1 -
SPI_NPCS3 SPI Peripheral Chip Select Output Low
Table 3-1. Signal Description List (Continued)
Signal Name Function Type Active Level Voltage reference Comments