Freescale Semiconductor MC68HC08KH12 - Manual (Page 27)

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27
Figure 1-1. MCU Block Diagram
DS Port 1
➀ PORTS ARE SOFTWARE CONFIGURABLE WITH PULLUP DEVICE IF INPUT PORT
➁ SOFTWARE CONFIGURABLE LED DIRECT DRIVE 3mA SOURCE /10mA SINK or STANDARD DRIVE
➂ PIN CONTAINS INTEGRATED PULLUP DEVICE
➃ PIN HAS INTERRUPT CAPABILITY
➄ PIN HAS INTERRUPT AND INTEGRATED PULLUP DEVICE.
➅ PIN HAS OPTICAL COUPLING INTERFACE
OSC1
OSC2
RST ➂
IRQ1/VPP ➂➃
VDD1
VSS1
PTC4–PTC0 ➀➁
REGOUT
PTB7–PTB0 ➀ PTA7–PTA0
PTE3/KBE3–
PTE0/KBE0
➀➃➅
VDD2
VSS2
VSSA
VDDA
CGMXFC
DPLUS4
TCH0/PTE1
TCH1/PTE2
TCLK/PTE0
PORT C
DDRC
PORT B
DDRB
PORT A
DDRA
PORT D
DDRD
PORT
E
DDRE
PO
R
T F
DD
RF
Embedded USB Function 384 bytes RAM 12k-bytes ROM/OTPROM
68HC08 CPU
CPU CONTROL ALU
CPU REGISTERS
ACCUMULATOR
INDEX REGISTER
STACK POINTER
PROGRAM COUNTER
CONDITION CODE REGISTER V 1 1 H I N Z C
DMINUS4
DPLUS3
DMINUS3
DPLUS2
DMINUS2
DPLUS1
DMINUS1
DPLUS0
US Port
DMINUS0
MONITOR ROM
240 bytes
COP MODULE
TIMER INTERFACE
MODULE
POWER-ON RESET
MODULE
BREAK MODULE
IRQ MODULE
SYSTEM INTEGRATION
MODULE
CLOCK GENERATION
MODULE AND PLL
POWER SUPPLY
AND
VOLTAGE REGULATION
PTD7/KBD7–
PTD0/KBD0
➄
DS Port 2
DS Port 3
DS Port 4
PTF7/KBF7–
PTF0/KBF0
➀➃
PTE4