mc68hc05pl4b Freescale Semiconductor, Inc, mc68hc05pl4b Datasheet - Page 92

• Manufacturer Part Number: mc68hc05pl4b
• Description: Low-cost Single-chip Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

GENERAL RELEASE SPECIFICATION
A.4.1 EPROM Program Control Register (PCN)
A-2
$001E
PCR
This register is provided for programming the on-chip EPROM in the
MC68HC705PL4.
ELAT – EPROM LATch control
$0DFF
$1DFF
$1FEF
$00C0
$1FFF
$00FF
$0E00
$1E00
$1FF0
$001F
$011F
Reset
$0000
$0020
$0120
Write
Read
0 = EPROM address and data bus con gured f or normal reads
1 = EPROM address and data bus con gured for programming (writes
to EPROM cause address and data to be latched). EPROM is in
programming mode and cannot be read if ELAT is 1. This bit should
not be set when no programming voltage is applied to the V
BOOTSTRAP ROM
64 BYTES
bit-7
STACK
USER VECTORS
0
I/O REGISTERS
USER EPROM
4096 BYTES
Figure A-1. MC68HC705PL4B Memory Map
496 BYTES
32 BYTES
16 BYTES
UNUSED
Freescale Semiconductor, Inc.
USER RAM
256 BYTES
For More Information On This Product,
bit-6
0
Go to: www.freescale.com
bit-5
RESERVED
0
April 30, 1998
bit4
0
16-BIT TIMER
8-BIT TIMER
KEYBOARD
RESERVED
RESERVED
bit-3
RESET
0
SWI
IRQ
bit-2
0
$1FF0-$1FF1
$1FF2-$1FF3
$1FF4-$1FF5
$1FF6-$1FF7
$1FF8-$1FF9
$1FFA-$1FFB
$1FFC-$1FFD
$1FFE-$1FFF
ELAT
bit1
0
MC68HC05PL4
PP
pin.
PGM
bit-0
REV 2.0
0