MC68HC908GT16_07 Datasheet, PDF (24/292 Pages) Freescale Semiconductor, Inc – Microcontrollers

General Description
M68HC08 CPU
CPU
REGISTERS
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS
REGISTERS — 64 BYTES
USER FLASH
MC68HC908GT16 — 15,872 BYTES
MC68HC908GT8 — 7,680 BYTES
USER RAM — 512 BYTES
MONITOR ROM — 304 BYTES
FLASH PROGRAMMING ROUTINES
ROM — 720 BYTES
USER FLASH VECTOR SPACE — 36 BYTES
PTE4/OSC1
PTE3/OSC2
INTERNAL CLOCK
GENERATOR MODULE
RST⁽³⁾
IRQ⁽³⁾
V_REFH
V_REFL
V_DD
V_SS
V_DDA
V_SSA
SYSTEM INTEGRATION
MODULE
SINGLE EXTERNAL
INTERRUPT MODULE
8-BIT ANALOG-TO-DIGITAL
CONVERTER MODULE
POWER-ON RESET
MODULE
POWER
INTERNAL BUS
PROGRAMMABLE TIMEBASE
MODULE
SINGLE BREAKPOINT BREAK
MODULE
DUAL VOLTAGE
LOW-VOLTAGE INHIBIT MODULE
8-BIT KEYBOARD
INTERRUPT MODULE
2-CHANNEL TIMER INTERFACE
MODULE 1
2-CHANNEL TIMER INTERFACE
MODULE 2
SERIAL COMMUNICATIONS
INTERFACE MODULE
COMPUTER OPERATING
PROPERLY MODULE
SERIAL PERIPHERAL
INTERFACE MODULE
MONITOR MODULE
MEMORY MAP
MODULE
CONFIGURATION REGISTER 1
MODULE
CONFIGURATION REGISTER 2
MODULE
1. Ports are software configurable with pullup device if input port.
2. Higher current drive port pins
3. Pin contains integrated pullup device
Figure 1-1. MCU Block Diagram
PTA7/KBD7–
PTA0/KBD0⁽¹⁾
PTB7/AD7
PTB6/AD6
PTB5/AD5
PTB4/AD4
PTB3/AD3
PTB2/AD2
PTB1/AD1
PTB0/AD0
PTC6⁽¹⁾
PTC5⁽¹⁾
PTC4⁽¹⁾⁽²⁾
PTC3⁽¹⁾⁽²⁾
PTC2⁽¹⁾⁽²⁾
PTC1⁽¹⁾⁽²⁾
PTC0⁽¹⁾⁽²⁾
PTD7/T2CH1⁽¹⁾
PTD6/T2CH0⁽¹⁾
PTD5/T1CH1⁽¹⁾
PTD4/T1CH0⁽¹⁾
PTD3/SPSCK⁽¹⁾
PTD2/MOSI⁽¹⁾
PTD1/MISO⁽¹⁾
PTD0/SS⁽¹⁾
PTE2
PTE1/RxD
PTE0/TxD
SECURITY
MODULE
MONITOR MODE ENTRY
MODULE
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
24
Freescale Semiconductor