tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 228
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tmp1940cyaf
Manufacturer Part Number
tmp1940cyaf
Description
32-bit Tx System Risc Tx19 Family
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP1940CYAF.pdf
(464 pages)
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BR0ADD
(0xFFFF_F204)
BR0CR
(0xFFFF_F203)
Figure 13.17 SIO0 Baud Rate Generator Control Registers (BR0CR and BR0ADD)
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
BR0ADD. BR0K[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
BR0ADDE
Don’t use.
Don’t use.
BR0CR.BR0ADDE
6
6
0
or
TMP1940CYAF-186
Clock source for baud rate generator
16)
00
01
10
11
1)
00: T0
01: T2
10: T8
11: T32
BR0CK1
1111 (N
Divided by N
0010 (N
(16 – K) / 16
Internal clock T0
Internal clock T2
Internal clock T8
Internal clock T32
Don’t use.
5
5
0
BR0CR. BR0S[3:0]
thru
+
1
15)
2)
BR0CK0
4
4
0
0001 (N 1) (Only UART)
1111 (N
0000 (N
Divided by N
BR0CR.BR0ADDE
R/W
thru
Clock divisor value N
Value of K in N+(16–K)/16
BR0S3
BR0K3
15)
16)
3
3
0
0
TMP1940CYAF
BR0S2
BR0K2
0
2
2
0
0
R/W
BR0S1
BR0K1
1
1
0
0
BR0S0
BR0K0
0
0
0
0
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