MC68HC908GT16_07 Datasheet, PDF (284/292 Pages) Freescale Semiconductor, Inc – Microcontrollers

MC68HC08GT16
$FE20
↓
$FF7D
$FF7E
$FF7F
MONITOR ROM (MONITOR BLOCK)
350 BYTES
RESERVED
MONITOR ROM (JUMP TABLE) 1 BYTE
$FF80
ICG TRIM REGISTER 5V (ICGTR5) FIX VALUE
$FF81
ICG TRIM REGISTER 3V (ICGTR3) FIX VALUE
$FF82
↓
$FF96
MONITOR ROM (JUMP TABLE)
21 BYTES
$FF97
↓
$FFDB
UNIMPLEMENTED
69 BYTES
$FFDC
↓
$FFFF⁽¹⁾
ROM VECTORS
36 BYTES
1. $FFF6–$FFFD reserved for eight security bytes
Table A-2. MC68HC08GT16 Memory Map (Continued)
A.5 ICG Trim Registers
The two ICG trim registers at $FF80 and $FF81 are masked with fixed values on the MC68HC08GT16.
These are not trim values. These registers are available for compatibility with the MC68HC908GT16 only.
On the MC68HC908GT16, these two trim registers are used to store user trim values.
A.6 Monitor ROM
The monitor program on the MC68HC08GT16 is for device testing only.
A.7 ADC Reference Pins (V_REFH and V_REFL)
V_REFH must be connected to the same voltage potential as the analog supply pin, V_DDA. V_REFL must be
connected to the same voltage potential as the analog supply pin, V_SSA.
A.8 Electrical Specifications
Electrical specifications for the MC68HC908GT16 apply to the MC68HC08GT16, except for the
parameters indicated below.
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
284
Freescale Semiconductor