Rainbow-electronics AT90S2313 Manual de usuario descargar pdf (Pagina 15)

AT90S2313

0839I–AVR–06/02

Figure 22. On-chip Data SRAM Access Cycles

I/O Memory The I/O space definition of the AT90S2313 is shown in Table 1.

System Clock Ø

Data

Address

T1 T2 T3 T4

Prev. Address

Read

Write

Table 1. AT90S2313 I/O Space

(1)

Address Hex Name Function

$3F ($5F) SREG Status Register

$3D ($5D) SPL Stack Pointer Low

$3B ($5B) GIMSK General Interrupt MaSK Register

$3A ($5A) GIFR General Interrupt Flag Register

$39 ($59) TIMSK Timer/Counter Interrupt MaSK Register

$38 ($58) TIFR Timer/Counter Interrupt Flag Register

$35 ($55) MCUCR MCU general Control Register

$33 ($53) TCCR0 Timer/Counter 0 Control Register

$32 ($52) TCNT0 Timer/Counter 0 (8-bit)

$2F ($4F) TCCR1A Timer/Counter 1 Control Register A

$2E ($4E) TCCR1B Timer/Counter 1 Control Register B

$2D ($4D) TCNT1H Timer/Counter 1 High Byte

$2C ($4C) TCNT1L Timer/Counter 1 Low Byte

$2B ($4B) OCR1AH Output Compare Register 1 High Byte

$2A ($4A) OCR1AL Output Compare Register 1 Low Byte

$25 ($45) ICR1H T/C 1 Input Capture Register High Byte

$24 ($44) ICR1L T/C 1 Input Capture Register Low Byte

$21 ($41) WDTCR Watchdog Timer Control Register

$1E ($3E) EEAR EEPROM Address Register

$1D ($3D) EEDR EEPROM Data Register

$1C ($3C) EECR EEPROM Control Register

$18 ($38) PORTB Data Register, Port B

$17 ($37) DDRB Data Direction Register, Port B

$16 ($36) PINB Input Pins, Port B

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 91 92

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