Toshiba H1 Series Data Book page 333

7
−
Bit symbol
BR0CR
Read/Write
(1203H)
After Reset 0
Always
write "0"
Function
+(16−K)/16 division enable
0 Disable
1 Enable
7
bit Symbol
Read/Write
BR0ADD
After reset
(1204H)
Function
Sets baud rate generator frequency divisor
BR0CR
<BR0S3:0>
BR0ADD
<BR0K3:0>
0000
0001(K = 1)
to
1111(K = 15)
Note1:Availability of +(16-K)/16 division function
N
2 to 15
1 , 16
The baud rate generator can be set "1" in UART mode and disable +(16-K)/16 division function.Don't use in I/O
interface mode.
Note2:Set BR0CR <BR0ADDE> to 1 after setting K (K = 1 to 15) to BR0ADD<BR0K3:0> when +(16-K)/16 division function is
used. Writes to unused bits in the BR0ADD register do not affext operation, and undefined data is read from these
unused bits.
Figure 3.14.8 Baud rate generator control (channel 0, BR0CR, BR0ADD)
6 5
BR0ADDE BR0CK1 BR0CK0
0 0
+(16−K)/16 00: φT0
01: φT2
division
10: φT8
0: Disable
11: φT32
1: Enable
Setting the input clock of baud rate generator
Internal clock φT0
00
Internal clock φT2
01
Internal clock φT8
10
Internal clock φT32
11
6 5
BR0CR<BR0ADDE> = 1
0000(N = 16) 0010 (N = 2)
or to
0001 (N = 1) 1111 (N = 15)
Disable Disable
Divided by
Disable
N + (16-K) /16
UART mode I/O mode
○
×
92CZ26A-330
4 3 2
BR0S3 BR0S2
R/W
0 0 0
Divided frequency setting
4 3 2
BR0K3 BR0K2
R/W
0 0
Sets frequency divisor "K"
(divided by N + (16-K) / 16)
BR0CR<BR0ADDE> = 0
0001 (N = 1) (UART only)
to
1111(N = 15)
0000(N = 16)
Divided by N
×
×
TMP92CZ26A
1 0
BR0S1 BR0S0
0 0
1 0
BR0K1 BR0K0
0 0