MC68HC711D3_05 Datasheet, PDF (126/138 Pages) Freescale Semiconductor, Inc – Microcontrollers

MC68HC11D3 and MC68HC11D0
A.2 Block Diagram
MODA/LIR
MODB/V_STBY
RESET
IRQ XIRQ
XTAL EXTAL E
MODE CONTROL
PA7
PA6
PA5
PA4
PA3
PORT A
PA2
PA1
PA0
V_DD
V_SS
EV_SS
INTERRUPT CONTROL
OSCILLATOR
CLOCK LOGIC
PAI/OC1 ^{PULSE ACCUMULATOR}
COP
OC2/OC1
OC3/OC1
OC4/OC1
IC4/OC5/OC1
TIMER
IC1
IC2
IC3
PERIODIC INTERRUPT
MC68HC11D3 — 4 KBYTES ROM
MC68HC11D0 — 0 BYTES ROM
192 BYTES RAM
MC68HC11D3
CPU CORE
SERIAL
PERIPHERAL
INTERFACE
(SPI)
SERIAL
COMMUNICATIONS
INTERFACE
(SCI)
TxD
RxD
MULTIPLEXED ADDRESS/DATA BUS
DATA DIRECTION REGISTER B
PORT B
DATA DIRECTION REGISTER C
PORT C
DATA DIRECTION REGISTER D
PORT D
Figure A-1. MC68HC11D3 Block Diagram
MC68HC711D3 Data Sheet, Rev. 2.1
126
Freescale Semiconductor