Freescale Semiconductor MC68HC908MR32 - Manual (Page 196)

MC6
8
HC9
08MR32
•
MC6
8
HC90
8
MR16
Da
ta
Sheet,
Re
v
. 6
.1
196
Fre
e
scale
Semico
nductor
Serial Pe
riphera
l In
terface Module (SP
I)
Figure 15-1. Block Diagram Highlighting SPI Block and Pins
CLOCK GENERATOR
MODULE
SYSTEM INTEGRATION
MODULE
SERIAL COMMUNICATIONS INTERFACE
MODULE
SERIAL PERIPHERAL INTERFACE
MODULE
(2)
TIMER INTERFACE
MODULE A
LOW-VOLTAGE INHIBIT
MODULE
POWER-ON RESET
MODULE
COMPUTER OPERATING PROPERLY
MODULE
ARITHMETIC/LOGIC
UNIT
CPU
REGISTERS
M68HC08 CPU
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
IRQ
MODULE
POWER
PTA
DDRA
D
DRB PTB
DDRC
PTC
PTD
D
DRE PT
E
PTF
DDRF
INTERNAL BUS
OSC1
OSC2
CGMXFC
RST
IRQ
V
SS
V
DD
V
DDAD
PTA7–PTA0
PTE7/TCH3A
PTE6/TCH2A
PTE5/TCH1A
PTE4/TCH0A
PTE3/TCLKA
PTE2/TCH1B
(1)
PTE1/TCH0B (1)
PTE0/TCLKB (1)
PTF5/TxD
PTF4/RxD
PTF3/MISO
(1)
PTF2/MOSI (1)
PTF1/SS (1)
PTF0/SPSCK (1)
TIMER INTERFACE
MODULE B
PULSE-WIDTH MODULATOR
MODULE
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
PWM6–PWM1
ANALOG-TO-DIGITAL CONVERTER
MODULE
V
SSAD
V
DDA
V
SSA
(3)
PWMGND
V
REFL
(3)
V
REFH
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.
SINGLE BREAK
MODULE