MC68HC11PH8 Datasheet, PDF (91/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

DISE— E clock output disable (refer to Section 3)
1 (set) – No E clock output.
0 (clear) – E clock is output normally.
4.10.2 CONFIG — System configuration register
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
4
ConÞguration control (CONFIG) $003F ROMAD FREEZ CLK4X PAREN NOSEC NOCOP ROMON EEON xxxx xxxx
ROMAD — ROM/EPROM mapping control (refer to Section 3)
1 (set) – ROM/EPROM addressed from $4000 to $FFFF.
0 (clear) – ROM/EPROM addressed from $0000 to $BFFF (expanded mode
only).
FREEZ — Expanded user mode address bus freeze (refer to Section 3)
1 (set) – The external bus is only active when externally mapped resources
are accessed (expanded mode only).
0 (clear) – Normal operation.
CLK4X — 4X clock enable (refer to Section 3)
1 (set) – 4XCLK or EXTALi driven out on the 4XOUT pin.
0 (clear) – 4XOUT pin disabled.
PAREN — Pull-up assignment register enable
1 (set) – Pull-ups can be enabled using PPAR register.
0 (clear) – All pull-ups disabled.
NOSEC — EEPROM security disabled (refer to Section 3)
1 (set) – Disable security.
0 (clear) – Enable security.
NOCOP — COP system disable (refer to Section 10)
1 (set) – COP system disabled.
0 (clear) – COP system enabled (forces reset on timeout).
MC68HC11PH8
PARALLEL INPUT/OUTPUT
TPG
MOTOROLA
4-13