NEC mPD780024AS Series Preliminary User's Manual page 226

Table 13-3. Relationship Between Main System Clock and Baud Rate
f = 8.386 MHz
X
Baud Rate
(bps)
BRGC0 ERR (%)
600 –
1200 7BH 1.10
2400 6BH 1.10
4800 5BH 1.10
9600 4BH 1.10
19200 3BH 1.10
31250 31H –1.3
38400 2BH 1.10
76800 1BH 1.10
115200 12H 1.10
Infrared 131031 bps
data
transfer
Note
mode
Note The UART/infrared data transfer mode specification is controlled by TXE0 and RXE0.
When using the infrared data transfer mode, be sure to set the baud rate generator control register
0 (BRGC0) as follows.
• k = 0 (MDL0 to MDL3 = 0000)
• n = 1 (TPS00 to TPS02 = 001)
Remark f : Main system clock oscillation frequency
X
n: Value set via TPS00 to TPS02 (0 ≤ n ≤ 7)
k: Value set via MDL00 to MDL03 (0 ≤ k ≤ 14)
226
CHAPTER 13 SERIAL INTERFACE (UART0)
f = 8.000 MHz
X
BRGC0 ERR (%)
– – –
7AH 0.16
6AH 0.16
5AH 0.16
4AH 0.16
3AH 0.16
30H 0
2AH 0.16
1AH 0.16
11H 2.12
125000 bps
Preliminary User's Manual U16035EJ1V0UM
f = 7.3728 MHz f = 5.000 MHz
X X
BRGC0 ERR (%) BRGC0
– – –
78H 0 70H
68H 0 60H
58H 0 50H
48H 0 40H
38H 0 30H
2DH 1.70 24H
28H 0 20H
18H 0 10H
10H 0 –
115200 bps 78125 bps
f = 4.1943 MHz
X
ERR (%) BRGC0 ERR (%)
– 7BH 1.14
1.73 6BH 1.14
1.73 5BH 1.14
1.73 4BH 1.14
1.73 3BH 1.14
1.73 2BH 1.14
0 21H –1.3
1.73 1BH 1.14
1.73 – –
– – –
65536 bps