p87lpc761bdh NXP Semiconductors, p87lpc761bdh Datasheet - Page 11

• Manufacturer Part Number: p87lpc761bdh
• Description: Low Power, Low Price, Low Pin Count 16 Pin Microcontroller With 2 Kbyte Otp
• Manufacturer: NXP Semiconductors

* SFRs are bit addressable.
# SFRs are modified from or added to the 80C51 SFRs.
1. Unimplemented bits in SFRs are X (unknown) at all times. Ones should not be written to these bits since they may be used for other
2. I/O port values at reset are determined by the PRHI bit in the UCFG1 configuration byte.
3. The PCON reset value is x x BOF POF–0 0 0 0b. The BOF and POF flags are not affected by reset. The POF flag is set by hardware upon
4. The WDCON reset value is xx11 0000b for a Watchdog reset, xx01 0000b for all other reset causes if the watchdog is enabled, and xx00
Philips Semiconductors
NOTES:
2002 Mar 07
TMOD
WDCON#
WDRST#
Low power, low price, low pin count (16 pin)
microcontroller with 2 kbyte OTP
purposes in future derivatives. The reset value shown in the table for these bits is 0.
power up. The BOF flag is set by the occurrence of a brownout reset/interrupt and upon power up.
0000b for all other reset causes if the watchdog is disabled.
Name
Timer 0 and 1 mode
Watchdog control register
Watchdog reset register
Description
Address
SFR
A7h
A6h
89h
–
–
MSB
–
–
8
WDOVF
M1
Bit Functions and Addresses
WDRUN
M0
WDCLK
GATE
WDS2
C/T
WDS1
M1
P87LPC761
LSB
WDS0
Preliminary data
M0
Reset
Value
Note 4
00h
xxh