TS87C52X2 ATMEL Corporation, TS87C52X2 Datasheet - Page 21
TS87C52X2
Manufacturer Part Number
TS87C52X2
Description
8-bit Microcontroller 8 Kbytes Otp
Manufacturer
ATMEL Corporation
Datasheet
1.TS87C52X2.pdf
(54 pages)
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4184E–8051–09/02
Table 10. PCON Register
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.
SMOD1
Number
Bit
7
7
6
5
4
3
2
1
0
Mnemonic
SMOD0
SMOD1
SMOD0
POF
6
GF1
GF0
Bit
PD
IDL
-
Description
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3.
Serial port Mode bit 0
Clear to select SM0 bit in SCON register.
Set to to select FE bit in SCON register.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Power-off Flag
Clear to recognize next reset type.
Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set
by software.
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
Power-down mode bit
Cleared by hardware when reset occurs.
Set to enter power-down mode.
Idle mode bit
Clear by hardware when interrupt or reset occurs.
Set to enter idle mode.
5
-
POF
4
GF1
3
GF0
2
TS8xCx2X2
PD
1
IDL
0
21