W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 167

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

12.2 UART/Parallel
BUFFER REGISTER)
(READ RECEIVER
INPUT DATA)
IRQ3 or IRQ4
(WRITE THR)
IRQ3 or IRQ4
SERIAL OUT
(RECEIVER
(READ TIR)
(SOUT)
IOW
SIN
IOR
IOR
THRS
THR
TSI
STAR
STAR
DATA BITS
DATA
Transmitter Timing
Receiver Timing
- 155 -
(5-8)
(5-8)
THR
W83977F/ W83977AF
PARITY
PARITY
Publication Release Date: March 1998
STOP
TSINT
STOP
(1-2)
STAR
TSTI
PRELIMINARY
TRINT
TIR
Revision 0.58