18
18-3
Ver.0.10
OSCILLATION CIRCUIT
18.1 Oscillator Circuit
18.1.2 System Clock Output Function
A clock whose frequency is twice the input frequency can be output from the BCLK pin. The BCLK
pin is shared with port P70. When you use this pin to output the system clock, set the P7 Operation
Mode Register (P7MOD)'s D8 bit to 1. Configuration of the P7 Operation Mode Register is shown
below.
■
P7 Operation Mode Register (P7MOD)
<Address: H'0080 0747>
D8
9
10
11
12
13
14
D15
P70MOD P71MOD P72MOD P73MOD P74MOD P75MOD P76MOD P77MOD
<When reset : H'00>
D
Bit Name
Function
R
W
8
P70MOD
0 : P70
(Port P70 operation mode)
1 : BCLK
9
P71MOD
0 : P71
(Port P71 operation mode)
____
1 : WAIT
10
P72MOD
0 : P72
(Port P72 operation mode)
____
1 : HREQ
11
P73MOD
0 : P73
(Port P73 operation mode)
____
1 : HACK
12
P74MOD
0 : P74
(Port P74 operation mode)
1 : RTDTXD
13
P75MOD
0 : P75
(Port P75 operation mode)
1 : RTDRXD
14
P76MOD
0 : P76
(Port P76 operation mode)
1 : RTDACK
15
P77MOD
0 : P77
(Port P77 operation mode)
1 : RTDCLK
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...