AT90SCR100_09 Datasheet, PDF (6/433 Pages) ATMEL Corporation – 8-bit Microcontroller for Smart Card Readers

Table 2-1. Pin List Configuration
ID
RTC1 - - x
Vcc
RTC2 - - x
TOSC1
TOSC2
Configuration, Role
TOSCx: 32.768 Khz crystals input for Real Time Clock.
(Please note that these pins are not GPIO accessible).
PA7 - - x
PA6 - - x
PA5 - - x
PA4 - - x
Vcc
PA3 - - x
PA2 - - x
PA1 - - x
PA0 - - x
KbIN7
KbIN6
KbIN5
KbIN4
KbIN3
KbIN2
KbIN1
KbIN0
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
KbINx: Input for “Keyboard Interface”
PB7 x - x
PB6 x - x
PB5 x - x
PB4 x - x
Vcc
PB3 - - x
PB2 - - x
PB1 - - x
PB0 - - x
SCK
MISO
MOSI
SS
PWM
INT3
INT2
OC2A
OC2B
OC1A
OC0B
OC0A
ICP1
T1
T0
CLKO
XCK
PCINT15
PCINT14
PCINT13
PCINT12
PCINT11
PCINT10
PCINT9
PCINT8
SS, MISO, MOSI, SCK: Standard “SPI - Serial Peripheral
Interface”
OCxx: Output Comparator outputs. See “Timers” on page 87.
ICP1: Input Capture. See “16-bit Timer/Counter1 with PWM”
PWM: Output from “8-bit Timer/Counter0 with PWM”
Tx: Clock input for “Timers” 0 and 1
XCK: Clock input for synchronous “USART”
INTx: “External Interrupts” , default configuration
CLKO: System clock output. (only active if CKOUT fuse is
enabled). “Fuse Low Byte” .
PC5 - - x
PC4 - - x
PC3 - - x
PC2 x x x
PC1 - - x
PC0 - - x
JTGTDI LED3
JTGTDO LED2
Vcc JTGTMS LED1
JTGTCK LED0
SDA
INT3b
SCL
INT2b
JTGxxx: “JTAG Interface and On-chip Debug System”
SDA, SCL: “2-wire Serial Interface _ TWI” signals
LEDx: “LED” Outputs (IO driving current)
INTxb: “External Interrupts” , bis configuration
PD7 - x x
PD6 - x x
PD5 - x x
PD4 - x x
PD3 - - x
PD2 - - x
PD1 x x x
PD0 x x x
HSMISO
HSMOSI
HSSCK
Vcc
HSSS
INT1
INT0
OC1B
TXD
RXD
PCINT23
PCINT22
PCINT21
PCINT20
PCINT19
PCINT18
PCINT17
PCINT16
HSxxxx: “High-Speed SPI Controller” (MISO, MOSI, SCK,
SS)
INTx: “External Interrupts” , default configuration
TXD, RXD: “USART” signals
OCxB: Output Comparators: See “Timers” on page 87.
6 AT90SCR100
TPR0327AY–SMS–30Jan09