M80C196KB 查看數據表（PDF） - Intel
零件编号
产品描述 (功能)
生产厂家
M80C196KB Datasheet PDF : 30 Pages
| |||
M80C196KB
IOC0 (15H)
IOS1 (16H)
IOC1 (16H)
20
271089 – 12
271089 – 13
271089 – 14
Port 2 Multiple Functions
Pin Func
Alternative
Function
Control
Reg
2 0 Output TXD (Serial Port
Transmit)
IOC1 5
2 1 Input RXD (Serial Port
Receive)
SPCON 3
2 3 Input T2CLK (Timer2 Clock IOC0 7
Baud)
2 4 Input T2RST (Timer2 Reset) IOC0 5
2 5 Output PWM Output
IOC1 0
2 6 QBD Timer2 up
down select
IOC2 1
2 7 QBD Timer2 Capture
QBD e Quasi-bidirectional
NA
Baud Rate Calculations
Asynchronous Modes 1 2 and 3
XTAL1
T2CLK
Baud Reg e
b1 OR
Baud Rate c 16
Baud Rate c 8
Synchronous Mode 0
XTAL1
T2CLK
Baud Reg e
b1 OR
Baud Rate c 2
Baud Rate
Baud Rates and Baud Register Values
Baud
Rate
XTAL Frequency
8 0 MHz
10 0 MHz 12 0 MHz
300 1666 b0 02 2082 0 02 2499 0 00
1200 416 b0 08 520 b0 03 624 0 00
2400 207 0 16 259 0 16 312 b0 16
4800 103 b0 16 129 0 16 155 0 16
9600 51 b0 16 64 0 16 77 0 16
19 2K 25 0 16 32 1 40 38 0 16
Baud Register Value % Error
A maximum baud rate of 750 Kbaud is available in
the asynchronous modes with 12 MHz on XTAL1
The synchronous mode has a maximum rate of 3 0
Mbaud with a 12 MHz clock Location 0EH is the
Baud Register It is loaded sequentially in two bytes
with the low byte being loaded first This register
may not be loaded with zero in serial port Mode 0
NOTE
The maximum T2CLK rate is 3 MHz when used to
set the baud rate
Share Link: 