SAM7S256_14 Datasheet, PDF (7/775 Pages) ATMEL Corporation – ARM-based Flash MCU

Table 3-1. Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
USB Device Port
DDM
USB Device Port Data -
Analog
DDP
USB Device Port Data +
Analog
USART
SCK0 - SCK1
Serial Clock
I/O
TXD0 - TXD1
Transmit Data
I/O
RXD0 - RXD1
Receive Data
Input
RTS0 - RTS1
Request To Send
Output
CTS0 - CTS1
Clear To Send
Input
DCD1
Data Carrier Detect
Input
DTR1
Data Terminal Ready
Output
DSR1
Data Set Ready
Input
RI1
Ring Indicator
Input
Synchronous Serial Controller
TD
Transmit Data
Output
RD
Receive Data
Input
TK
Transmit Clock
I/O
RK
Receive Clock
I/O
TF
Transmit Frame Sync
I/O
RF
Receive Frame Sync
I/O
Timer/Counter
TCLK0 - TCLK2
External Clock Inputs
Input
TIOA0 - TIOA2
I/O Line A
I/O
TIOB0 - TIOB2
I/O Line B
I/O
PWM Controller
PWM0 - PWM3
PWM Channels
Output
SPI
MISO
Master In Slave Out
I/O
MOSI
Master Out Slave In
I/O
SPCK
SPI Serial Clock
I/O
NPCS0
SPI Peripheral Chip Select 0
I/O
Low
NPCS1-NPCS3
SPI Peripheral Chip Select 1 to 3
Output
Low
Comments
not present on SAM7S32/16
not present on SAM7S32/16
SCK1 not present on SAM7S32/16
TXD1 not present on SAM7S32/16
RXD1 not present on SAM7S32/16
RTS1 not present on SAM7S32/16
CTS1 not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
TCLK1 and TCLK2 not present on
SAM7S32/16
TIOA2 not present on SAM7S32/16
TIOB2 not present on SAM7S32/16
SAM7S Series [DATASHEET]
7
6175M–ATARM–26-Oct-12