TS87C54X2 Temic Semiconductors, TS87C54X2 Datasheet - Page 23

• Manufacturer Part Number: TS87C54X2
• Description: 8-bit CMOS Microcontroller 0-60 MHz
• Manufacturer: Temic Semiconductors

PCON - Power Control Register (87h)
Reset Value = 00X1 0000b
Not bit addressable
Power-off flag reset value will be 1 only after a power on (cold reset). A warm reset doesn’t affect the value of this bit.
Rev. B - Aug. 31, 1999
Number
SMOD1
Bit
7
6
5
4
3
2
1
0
7
Mnemonic
SMOD1
SMOD0
POF
GF1
GF0
IDL
Bit
SMOD0
PD
-
6
Serial port Mode bit 1
Serial port Mode bit 0
Reserved
Power-Off Flag
General purpose Flag
General purpose Flag
Power-Down mode bit
Idle mode bit
Set to select double baud rate in mode 1, 2 or 3.
Clear to select SM0 bit in SCON register.
Set to to select FE bit in SCON register.
The value read from this bit is indeterminate. Do not set this bit.
Clear to recognize next reset type.
Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set by software.
Cleared by user for general purpose usage.
Set by user for general purpose usage.
Cleared by user for general purpose usage.
Set by user for general purpose usage.
Cleared by hardware when reset occurs.
Set to enter power-down mode.
Clear by hardware when interrupt or reset occurs.
Set to enter idle mode.
5
-
Table 9. PCON Register
POF
4
GF1
3
Description
GF0
2
TS80C54X2/C58X2
TS87C54X2/C58X2
PD
1
IDL
0
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