MC68HC08AZ32A Datasheet, PDF (172/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Communications Interface (SCI)
M68HC08 CPU
CPU
REGISTERS
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS
USER RAM — 1024 BYTES
USER EEPROM — 512 BYTES
USER ROM — 32,256 BYTES
MONITOR ROM — 256 BYTES
USER ROM VECTOR SPACE — 52 BYTES
OSC1
OSC2
CGMXFC
CLOCK GENERATOR
MODULE
RST
SYSTEM INTEGRATION
MODULE
IRQ
IRQ
MODULE
POWER-ON RESET
MODULE
SERIAL COMMUNICATIONS
INTERFACE MODULE
RxCAN
TxCAN
MSCAN08 CONTROLLER
MODULE
BREAK
MODULE
LOW-VOLTAGE INHIBIT
MODULE
COMPUTER OPERATING PROPERLY
MODULE
TIMER A INTERFACE
MODULE
(6 CHANNELS)
TIMER B INTERFACE
MODULE
(2 CHANNELS)
SERIAL PERIPHERAL INTERFACE
MODULE
ANALOG-TO-DIGITAL CONVERTER
MODULE
PROGRAMMABLE INTERRUPT TIMER
MODULE
V_DD
V_SS
V_SSA
V_DDA
POWER
KEYBOARD INTERRUPT
MODULE
V_REFH
AV_SS/V_REFL
V_DDAREF
Figure 14-1. Block Diagram Highlighting SCI Block and Pins
PTA7–PTA0
PTB7/ATD7–
PTB0/ATD0
PTC5–PTC3
PTC2/MCLK
PTC1–PTC0
PTD7
PTD6/ATD14/TACLK
PTD5/ATD13
PTD4/ATD12/TBCLK
PTD3/ATD11–
PTD0/ATD8
PTE7/SPSCK
PTE6/MOSI
PTE5/MISO
PTE4/SS
PTE3/TACH1
PTE2/TACH0
PTE1/RxD
PTE0/TxD
PTF6
PTF5/TBCH1–
PTF4/TBCHO
PTF3/TACH5–
PTF0/TACH2
PTG2/KBD2–
PTG0/KBD0
PTH1/KBD4–
PTH0/KBD3
MC68HC08AZ32A Data Sheet, Rev. 2
172
Freescale Semiconductor