MC9S08GT16 MOTOROLA [Motorola, Inc], MC9S08GT16 Datasheet - Page 72

• Manufacturer Part Number: MC9S08GT16
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Chapter 5 Resets, Interrupts, and System Configuration
COPE — COP Watchdog Enable
COPT — COP Watchdog Timeout
STOPE — Stop Mode Enable
BKGDPE — Background Debug Mode Pin Enable
5.8.5
This read-only register is included so host development systems can identify the HCS08 derivative and
revision number. This allows the development software to recognize where specific memory blocks,
registers, and control bits are located in a target MCU.
REV[3:0] — Revision Number
72
This write-once bit defaults to 1 after reset.
This write-once bit defaults to 1 after reset.
This write-once bit defaults to 0 after reset, which disables stop mode. If stop mode is disabled and a
user program attempts to execute a STOP instruction, an illegal opcode reset is forced.
The BKGDPE bit enables the PTG0/BKGD/MS pin to function as BKGD/MS. When the bit is clear,
the pin will function as PTG0, which is an output-only general-purpose I/O. This pin always defaults
to BKGD/MS function after any reset.
The high-order 4 bits of address $1806 are hard coded to reflect the current mask set revision number
(0–F).
1
1 = COP watchdog timer enabled (force reset on timeout).
0 = COP watchdog timer disabled.
1 = Long timeout period selected (2
0 = Short timeout period selected (2
1 = Stop mode enabled.
0 = Stop mode disabled.
1 = BKGD pin enabled.
0 = BKGD pin disabled.
The revision number that is hard coded into these bits reflects the current silicon revision level.
System Device Identification Register (SDIDH, SDIDL)
Figure 5-6. System Device Identification Register (SDIDH, SDIDL)
Reset:
Reset:
Read:
Read:
REV3
Bit 7
ID7
0
0
1
= Unimplemented or Reserved
MC9S08GB/GT Data Sheet, Rev. 2.3
REV2
0
ID6
6
0
(1)
18
13
cycles of BUSCLK).
cycles of BUSCLK).
REV1
0
ID5
5
0
(1)
REV0
0
ID4
4
0
(1)
ID11
ID3
3
0
0
ID10
ID2
2
0
0
Freescale Semiconductor
ID9
ID1
1
0
1
Bit 0
ID8
ID0
0
0