mc68hc908gt8 Freescale Semiconductor, Inc, mc68hc908gt8 Datasheet - Page 284

• Manufacturer Part Number: mc68hc908gt8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC08GT16
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
V
connected to the same voltage potential as the analog supply pin, V
A.8 Electrical Specifications
Electrical specifications for the MC68HC908GT16 apply to the MC68HC08GT16, except for the
parameters indicated below.
284
REFH
must be connected to the same voltage potential as the analog supply pin, V
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
$FFFF
$FFDB
$FFDC
$FE20
$FF7D
$FF7E
1. $FFF6–$FFFD reserved for eight security bytes
$FF7F
$FF80
$FF81
$FF82
$FF96
$FF97
Table A-2. MC68HC08GT16 Memory Map (Continued)
↓
↓
↓
↓
(1)
REFH
ICG TRIM REGISTER 5V (ICGTR5) FIX VALUE
ICG TRIM REGISTER 3V (ICGTR3) FIX VALUE
MONITOR ROM (JUMP TABLE) 1 BYTE
MONITOR ROM (MONITOR BLOCK)
and V
MONITOR ROM (JUMP TABLE)
UNIMPLEMENTED
ROM VECTORS
REFL
RESERVED
350 BYTES
21 BYTES
69 BYTES
36 BYTES
)
SSA
.
Freescale Semiconductor
DDA
. V
REFL
must be