Intel 80C196NU ユーザーズマニュアル
C-43
REGISTERS
SP_BAUD
Table C-16. SP_BAUD Values When Using the Internal Clock at 25 MHz
Baud Rate
SP_BAUD Register Value (Note 1)
% Error
Mode 0
Mode 1, 2, 3
Mode 0
Mode 1, 2, 3
9600
8515H
80A2H
0
0.15
4800
8A2BH
8144H
0
0.16
2400
9457H
828AH
0
0
1200
A8AFH
8515H
0
0
300
(Note 2)
9457H
(Note 2)
0
NOTES:
1.
Bit 15 is always set when the internal peripheral clock is selected as the clock source for the baud-
rate generator.
rate generator.
2.
For mode 0 operation at 25 MHz, the minimum baud rate is 381.47 (BAUD_VALUE = 7FFFH).
For mode 0 operation at 300 baud, the maximum internal clock frequency is 19.6608 MHz
(BAUD_VALUE = 7FFFH).
For mode 0 operation at 300 baud, the maximum internal clock frequency is 19.6608 MHz
(BAUD_VALUE = 7FFFH).