Freescale Semiconductor MC68HC908MR16 Datasheet page 158

M68HC08 CPU
CPU ARITHMETIC/LOGIC
REGISTERS
CONTROL AND STATUS REGISTERS — 112 BYTES
USER FLASH — 32,256 BYTES
USER RAM — 768 BYTES
MONITOR ROM — 240 BYTES
USER FLASH VECTOR SPACE — 46 BYTES
OSC1
CLOCK GENERATOR
OSC2
MODULE
CGMXFC
SYSTEM INTEGRATION
RST
MODULE
IRQ
MODULE
V
DDA
(3)
V ANALOG-TO-DIGITAL CONVERTER
SSA
(3)
MODULE
V
REFL
V
REFH
PWMGND
PULSE-WIDTH MODULATOR
PWM6–PWM1
MODULE
V
SS
V
DD
POWER
V
DDAD
V
SSAD
Figure 13-1. Block Diagram Highlighting SCI Block and Pins
UNIT
IRQ
INTERNAL BUS
LOW-VOLTAGE INHIBIT
MODULE
COMPUTER OPERATING PROPERLY
MODULE
TIMER INTERFACE
MODULE A
TIMER INTERFACE
MODULE B
SERIAL COMMUNICATIONS INTERFACE
MODULE
SERIAL PERIPHERAL INTERFACE
(2)
MODULE
POWER-ON RESET
MODULE
SINGLE BREAK
MODULE
PTF5/TxD
PTF4/RxD
(1)
PTF3/MISO
(1)
PTF2/MOSI
(1)
PTF1/SS
(1)
PTF0/SPSCK
Notes:
1. These pins are not available in the 56-pin SDIP package.
2. This module is not available in the 56-pin SDIP package.
3. In the 56-pin SDIP package, these pins are bonded together.
PTA7–PTA0
PTB7/ATD7
PTB6/ATD6
PTB5/ATD5
PTB4/ATD4
PTB3/ATD3
PTB2/ATD2
PTB1/ATD1
PTB0/ATD0
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1/ATD9(1)
PTC0/ATD8
PTD6/IS3
PTD5/IS2
PTD4/IS1
PTD3/FAULT4
PTD2/FAULT3
PTD1/FAULT2
PTD0/FAULT1
PTE7/TCH3A
PTE6/TCH2A
PTE5/TCH1A
PTE4/TCH0A
PTE3/TCLKA
(1)
PTE2/TCH1B
(1)
PTE1/TCH0B
(1)
PTE0/TCLKB