mc68hc908qz16 Freescale Semiconductor, Inc, mc68hc908qz16 Datasheet - Page 122
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mc68hc908qz16
Manufacturer Part Number
mc68hc908qz16
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908QZ16.pdf
(314 pages)
- Current page: 122 of 314
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MSCAN08 Controller (MSCAN08)
12.3 External Pins
The MSCAN08 uses two external pins, one input (CAN
pin represents the logic level on the CAN: 0 is for a dominant state, and 1 is for a recessive state.
A typical CAN system with MSCAN08 is shown in
122
1. Ports are software configurable with pullup device if input port.
2. Higher current drive port pins
3. Pin contains integrated pullup device
FLASH PROGRAMMING ROUTINES ROM — 406 BYTES
V
V
DDAD
DDAD
CONTROL AND STATUS REGISTERS — 64 BYTES
CGMXFC
USER FLASH VECTOR SPACE — 44 BYTES
/V
/V
REGISTERS
RST
OSC1
OSC2
IRQ
REFH
REFL
V
V
V
V
DDA
SSA
CPU
DD
SS
(3)
(3)
USER FLASH — 15,872 BYTES
MONITOR ROM — 350 BYTES
USER RAM — 1024 BYTES
M68HC08 CPU
CLOCK GENERATOR MODULE
Figure 12-1. Block Diagram Highlighting MSCAN08 Block and Pins
10-BIT ANALOG-TO-DIGITAL
SYSTEM INTEGRATION
CONVERTER MODULE
PHASE LOCKED LOOP
1–8 MHz OSCILLATOR
INTERRUPT MODULE
SINGLE EXTERNAL
POWER-ON RESET
ARITHMETIC/LOGIC
MODULE
MODULE
POWER
UNIT (ALU)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
PROGRAMMABLE TIMEBASE
COMPUTER OPERATING
Figure
LOW-VOLTAGE INHIBIT
INTERFACE MODULE 1
INTERFACE MODULE 2
SINGLE BREAKPOINT
INTERRUPT MODULE
INTERFACE MODULE
SERIAL PERIPHERAL
INTERFACE MODULE
PROPERLY MODULE
ENHANCED SERIAL
MSCAN08 MODULE
MONITOR MODULE
2-CHANNEL TIMER
2-CHANNEL TIMER
COMUNICATIONS
8-BIT KEYBOARD
CONFIGURATION
BREAK MODULE
DUAL VOLTAGE
INTERNAL BUS
REGISTER 1–2
MEMORY MAP
RX
MODULE
MODULE
MODULE
MODULE
12-2.
) and one output (CAN
TX
). The CAN
Freescale Semiconductor
MONITOR MODE ENTRY
SECURITY
MODULE
MODULE
PTA7/KBD7–
PTA0/KBD0
PTB7/AD7
PTB6/AD6
PTB5/AD5
PTB4/AD4
PTB3/AD3
PTB2/AD2
PTB1/AD1
PTB0/AD0
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1/CAN
PTC0/CAN
PTD7/T2CH1
PTD6/T2CH0
PTD5/T1CH1
PTD4/T1CH0
PTD3/SPSCK
PTD2/MOSI
PTD1/MISO
PTD0/SS
PTE5–PTE2
PTE1/RxD
PTE0/TxD
TX
(1)
(1)
(1), (2)
(1), (2)
(1), (2)
output
(1)
(1)
RX
TX
(1)
(1)
(1), (2)
(1), (2)
(1)
(1)
(1)
(1)
(1)
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