68HC05CL48 Datasheet, PDF (15/145 Pages) Motorola, Inc – SPECIFICATION (General Release)

June 11, 1997 GENERAL RELEASE SPECIFICATION
1.2 MCU STRUCTURE
The block diagram of the MC68HC05CL48 is shown in Figure 1-1
USER ROM — 47.5k BYTES
USER RAM — 2.0k BYTES
IRQ/VPP
RESET
CPU CONTROL
ARITHMETIC/LOGIC
UNIT
M68HC05
MCU
RESET
ACCUMULATOR
INDEX REGISTER
STACK POINTER
0 00 0000011
PROGRAM COUNTER
OSC1
OSC2
XFC
TCAP1
TCAP2
INTERNAL
OSCILLATOR
PLL
WTIMER
TIMER
CONDITION CODE REGISTER
1 1 1 H I NCZ
CPU CLOCK
DIVIDE
BY TWO
INTERNAL CLOCK
COP
WATCHDOG
VDD
POWER LCD DRIVER
SPI
A/D
VSS
PTA7/KB7
PTA6/KB6
PTA5/KB5
PTA4/KB4
PTA3/KB3
PTA2/IRQ2
PTA1/IRQ1
PTA0/IRQ0
PTB7
PTB6
PTB5
PTB4
PTB3
PTB2
PTB1
PTB0
PTC7/TCAP2
PTC6/TCAP1
PTC5/AD3
PTC4/AD2
PTC3/ SS
PTC2/MOSI
PTC1/MISO
PTC0/SCK
FSK+
FSK–
RT_L
RD1
RD2
Figure 1-1. MC68HC05CL48 Block Diagram
MC68HC05CL48
REV 2.0
GENERAL DESCRIPTION
MOTOROLA
1-3