C8051F700-GQR Silicon Laboratories Inc, C8051F700-GQR Datasheet - Page 170

• Manufacturer Part Number: C8051F700-GQR
• Description: MCU 8-Bit C8051F70x 8051 CISC 15KB Flash 1.8V/3V 64-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F700-GQR

• Package: 64TQFP
• Device Core: 8051
• Family Name: C8051F70x
• Maximum Speed: 25 MHz
• Ram Size: 512 Byte
• Program Memory Size: 15 KB
• Operating Supply Voltage: 1.8|3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 54
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 16-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

C8051F70x/71x
SFR Definition 26.1. WDTCN: Watchdog Timer Control
SFR Address = 0xE3; SFR Page = All Pages
170
Name
Reset
7:0
2:0
Bit
Type
4
Bit
WDTTIMEOUT Watchdog Timeout Interval
WDTSTATUS
WDT[7:0]
Name
7
0
WDT Control.
Watchdog Status Bit.
Bits.
6
0
Description
5
0
Rev. 1.0
4
1
WDT[7:0]
Writing 0xA5 both
enables and reloads the
WDT.
Writing 0xDE followed
within 4 system clocks by
0xAD disables the WDT.
Writing 0xFF locks out
the disable feature.
WDTCN[2:0] bits set the
Watchdog Timeout Inter-
val. When writing these
bits, WDTCN[7] must be
set to 0.
R/W
3
0
Write
2
1
0: WDT is inactive
1: WDT is active
1
1
Read
0
1