tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 231

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

BR4ADD
(0xFFFF_F28C)
BR4CR
(0xFFFF_F28B)
Figure 13.20 SIO4 Baud Rate Generator Control Registers (BR4CR and BR4ADD)
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Note 1: The baud rate generator divisor can not be set to 1 in UART mode if the N + (16 – K) / 16 clock
Note 2: To use the N + (16 – K) / 16 clock division function, the value of K must be programmed in the
Note 3: The N + (16 – K) / 16 clock division function can only be used in UART mode. In I/O Interface
BR4ADD. BR4K[3:0]
1111(K
0001(K
0000
division function is enabled. The divisor should be set to 2 or greater in I/O Interface mode.
BR0ADD.BR0K[3:0] field before setting BR0CR.BR0ADDE to 1. However, the N + (16 – K) / 16
clock division function is not usable when BR0CR.BR0S[3:0] = 0000 (N = 16) or 0001 (N = 1).
mode, this must be disabled by clearing BR0CR.BR0ADDE to 0.
thru
Must be
written as
0.
15)
Clock divisor value for baud rate generator
1)
7
7
0
0000 (N
0001 (N
N +
(16–K)/16
function
0: Disabled
1: Enabled
BR4ADDE
BR4CR.BR4ADDE
Invalid
Invalid
6
6
0
or
TMP1940CYAF-189
Clock source for baud rate generator
16)
00
01
10
11
1)
00: T0
01: T2
10: T8
11: T32
BR4CK1
1111 (N
Divided by N
0010 (N
(16 – K) / 16
Internal clock T0
Internal clock T2
Internal clock T8
Internal clock T32
5
5
0
BR4CR. BR4S[3:0]
Invalid
thru
+
1
15)
2)
BR4CK0
4
4
0
0001 (N 1) (Only UART)
1111 (N
0000 (N
Divided by N
BR4CR.BR4ADDE
R/W
thru
Clock divisor value N
Value of K in N+(16–K)/16
BR4S3
BR4K3
15)
16)
3
3
0
0
TMP1940CYAF
BR4S2
BR4K2
0
2
2
0
0
R/W
BR4S1
BR4K1
1
1
0
0
BR4S0
BR4K0
0
0
0
0