570
Chapter 13
Auxiliary Frequency Output Function (AFO)
User’s Manual U16580EE3V1UD00
13.3 Control
Registers
(1)
Prescaler mode register 2 (PRSM2)
The PRSM2 register controls generation of a baud rate signal for the AFO function.
This register can be read or written in 8-bit or 1-bit units.
Reset input clears this register to 00H.
Figure 13-2:
Prescaler Mode Register 2 (PRSM2)
Cautions: 1. Do not rewrite the PRSM2 register during operation.
2. Set the BGCS21, BGCS20 bits before setting the BGCE2 bit to 1.
After reset:
00H
R/W
Address:
FFFFFDE0H
7
6
5
4
3
2
1
0
PRSM2
0
0
BGCE2
0
0
BGCS21
BGCS20
BGCE2
Baud Rate Generator Output Control
0
Disabled
1
Enabled
BGCS21
BGCS20
Baud Rate Generator Clock Selection (f
BGCS2
)
Setting Value (k)
0
0
f
XX
0
0
1
f
XX
/2
1
1
0
f
XX
/4
2
1
1
f
XX
/8
3
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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