MCU Resets, Interrupts, and System Configuration
MC1321x Reference Manual, Rev. 1.6
12-12
Freescale Semiconductor
COPT — COP Watchdog Timeout
This write-once bit defaults to 1 after reset.
1 = Long timeout period selected (2
18
cycles of BUSCLK).
0 = Short timeout period selected (2
13
cycles of BUSCLK).
STOPE — Stop Mode Enable
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.
1 = Stop Mode enabled.
0 = Stop Mode disabled.
STOPT — Stop Recovery Time Select
This write-once bit is not used and ignored in the HCS08 because this MCU always defaults to the
self-clocked VCO clock source on recovery from stop mode. Since there is little start-up time for the
self-clocked clock source, stop recovery is always fast in the HCS08.
1 = Long stop recovery to allow crystal oscillator start-up (does not apply in HCS08).
0 = Short stop recovery (assumes oscillator is running as MCU recovers from stop).
BKGDPE — Background Debug Mode Pin Enable
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.
1 = BKGD pin enabled.
0 = BKGD pin disabled.
12.7.5
System Device Identification Register (SDIDH, SDIDL)
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.
Figure 12-6. System Device Identification Register (SDIDH, SDIDL)
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Reset:
0
1
1
The revision number that is hard coded into these bits reflects the current silicon revision level.
0
(1)
0
(1)
0
(1)
0
0
0
0
Read:
Reset:
0
0
0
0
0
0
1
0
= Unimplemented or Reserved
Summary of Contents for freescale semiconductor MC13211
Page 40: ...MC1321x Pins and Connections MC1321x Reference Manual Rev 1 6 2 6 Freescale Semiconductor...
Page 166: ...Modem Modes of Operation MC1321x Reference Manual Rev 1 6 7 22 Freescale Semiconductor...
Page 172: ...Modem Interrupt Description MC1321x Reference Manual Rev 1 6 8 6 Freescale Semiconductor...
Page 186: ...MCU Modes of Operation MC1321x Reference Manual Rev 1 6 10 8 Freescale Semiconductor...
Page 208: ...MCU Memory MC1321x Reference Manual Rev 1 6 11 22 Freescale Semiconductor...
Page 244: ...MCU Parallel Input Output MC1321x Reference Manual Rev 1 6 13 20 Freescale Semiconductor...
Page 288: ...MCU Central Processor Unit CPU MC1321x Reference Manual Rev 1 6 15 20 Freescale Semiconductor...
Page 308: ...MCU Timer PWM TPM Module MC1321x Reference Manual Rev 1 6 17 16 Freescale Semiconductor...
Page 338: ...Inter Integrated Circuit IIC MC1321x Reference Manual Rev 1 6 19 14 Freescale Semiconductor...
Page 372: ...Development Support MC1321x Reference Manual Rev 1 6 21 20 Freescale Semiconductor...
