Intel 386 User Manual

Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
17-8
Figure 17-2. WDT Counter Value Registers (WDTCNTH and WDTCNTL)
WDT Counter Value (High)
WDTCNTH
(read only)
Expanded Addr:
ISA Addr:
Reset State:
F4C4H
—
003FH
15 8
WC31 WC30 WC29 WC28 WC27 WC26 WC25 WC24
7 0
WC23 WC22 WC21 WC20 WC19 WC18 WC17 WC16
WDT Counter Value (Low)
WDTCNTL
(read only)
Expanded Addr:
ISA Addr:
Reset State:
F4C6H
—
FFFFH
15 8
WC15 WC14 WC13 WC12 WC11 WC10 WC9 WC8
7 0
WC7 WC6 WC5 WC4 WC3 WC2 WC1 WC0
Bit Number
Bit
Mnemonic
Function
High 15–0 WC31:16 WDT Counter Value High Word and Low Word:
Read the high word of the counter value from WDTCNTH and the low
word from WDTCNTL.
Low 15–0 WC15:0

Intel 386 Specifications

General

Architecture	x86
Clock Speed	12 MHz to 40 MHz
Transistor Count	275, 000
Data Bus Width	32-bit
Address Bus Width	32-bit
Instruction Set	x86
Introduced	1985
Maximum Memory	4 GB
Operating Modes	Real mode, Protected mode, Virtual 8086 mode
MMU	Yes
Voltage	5V
Model	Intel 386
Package	PGA
Process	1.5 μm to 1 μm