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20
OSCILLATOR CIRCUIT
20-9
32185/32186 Group Hardware Manual
Rev.1.10 REJ09B0235-0110 May 15, 07
The following shows configurations for P7 Operation Mode Register, P7 Peripheral Function Select Register,
P15 Operation Mode Register and P15 Peripheral Function Select Register.
P7 Operation Mode Register (P7MOD)
<Address: H’0080 0747>
<Upon exiting reset: H’00>
b
Bit Name
Function
R
W
8
P70MD
0: P70
R
W
Port P70 operation mode bit
1: CLKOUT/WR#/BCLK (Note 1)
9
P71MD
0: P71
R
W
Port P71 operation mode bit
1: WAIT# (Note 2)
10
P72MD
0: P72
R
W
Port P72 operation mode bit
1: HREQ#/TIN27 (Note 3)
11
P73MD
0: P73
R
W
Port P73 operation mode bit
1: HACK#/TIN26 (Note 3)
12
P74MD
0: P74
R
W
Port P74 operation mode bit (Note 4)
1: RTDTXD/TXD3 (Note 3)
13
P75MD
0: P75
R
W
Port P75 operation mode bit (Note 4)
1: RTDRXD/RXD3 (Note 3)
14
P76MD
0: P76
R
W
Port P76 operation mode bit (Note 4)
1: RTDACK/CTX1 (Note 3)
15
P77MD
0: P77
R
W
Port P77 operation mode bit (Note 4)
1: RTDCLK/CRX1 (Note 3)
Note 1: These functions are selected using the P7 Peripheral Function Select Register and Bus Mode Control Register.
Note 2: During single-chip mode, settings of this register have no effect, and the port functions as port input/output pin.
Note 3: These functions are selected using the P7 Peripheral Function Select Register.
Note 4: If the NBD function is selected by the NBD Pin Control Register, the port functions as NBD pin no matter how this register is set.
b8
9
10
11121314
b15
P70MD
P71MD
P72MD
P73MD
P74MD
P75MD
P76MD
P77MD
000
00000
P7 Peripheral Function Select Register (P7SMOD)
<Address: H’0080 0767>
<Upon exiting reset: H’00>
b
Bit Name
Function
R
W
8
P70SMD
0: CLKOUT/WR# (Note 1)
R
W
Port P70 peripheral function select bit
1: BCLK
9
No function assigned. Fix to "0."
00
10
P72SMD
0: HREQ#
R
W
Port P72 peripheral function select bit
1: TIN27
11
P73SMD
0: HACK#
R
W
Port P73 peripheral function select bit
1: TIN26
12
P74SMD (Note 2)
0: RTDTXD
R
W
Port P74 peripheral function select bit
1: TXD3
13
P75SMD (Note 2)
0: RTDRXD
R
W
Port P75 peripheral function select bit
1: RXD3
14
P76SMD (Note 2)
0: RTDACK
R
W
Port P76 peripheral function select bit
1: CTX1
15
P77SMD (Note 2)
0: RTDCLK
R
W
Port P77 peripheral function select bit
1: CRX1
Note 1: Which function of the pin is used depends on how the Bus Mode Control Register is set.
Note 2: If the NBD function is selected by the NBD Pin Control Register, the port functions as NBD pin no matter how this register is set.
Note: The value of this register can only be modified when the corresponding P7 operation mode register bit = 0 (set for port).
Then set the corresponging P7 operation mode register bit to "1."
20.1 Oscillator Circuit
b8
9
10
11121314
b15
P70SMD
P72SMD
P73SMD
P74SMD
P75SMD
P76SMD
P77SMD
000
0000
0