32186 datasheet(244/1032 Pages) RENESAS

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INPUT/OUTPUT PORTS AND PIN FUNCTIONS

8-42

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

8.7 Port Peripheral Circuits

Figure 8.7.4 Port Peripheral Circuit Diagram (4)

P70(CLKOUT/WR#/BCLK)

P74(RTDTXD/TXD3/NBDD0)

P76(RTDACK/CTX1/NBDD2)

P82(TXD0/TO26)

P85(TXD1/TO23)

P94(TO17/TXD5/DD15)

P102(TO10/CTX0)

P106(TO14/TXD4/DD1)

P110 - P117(TO0/TO29/DD11

-TO8/TO36/DD4)

P174(TXD2/TO28)

P220(CTX0/HACK#)

P221(CRX0/HREQ#)

P72(HREQ#/TIN27)

P75(RTDRXD/RXD3/NBDD1)

P77(RTDCLK/CRX1/NBDD3)

P135(TIN21/RXD3)

P136(TIN22/CRX1)

P153(TIN3/WAIT#)

Port input data selection

Data bus

Peripheral function input 2 (Note 4)

Peripheral function input 1 (Note 4)

Peripheral function input 2 (Note 4)

Peripheral function input 1 (Note 4)

Peripheral function input 2

Peripheral function input 1

Port input data selection

Direction register

Port output latch

Data bus

Operation mode register

Peripheral function

select register

Input function

enable

(Note 1) (Note 2)

Port input level

switching function

(Standard:

peripheral schmitt)

Operation mode register

Peripheral function

select register

Input function

enable

(Note 1) (Note 3)

Port input level

switching function

(Standard:

peripheral schmitt)

Note 1: For details about the port level switching function, see Section 8.4, "Port Input Level Switching Function."

Note 2: The standard input level of WAIT# is peripheral TTL.

Note 3: There is no standard input level in P70, P82, P85, P94, P102, P106, P110-P117, P174, and P220.

Note 4: "H" level is entered to the peripheral function input when it is set to the general-purpose port inthe operation

mode register.

Notes: • The circle denotes a pin.

• The symbol

denotes a parasitic diode. Make sure the voltage applied to each pin does not exceed

the VCCE or VCC-BUS voltage.

• The input capacitance of each pin is approximately 10 pF.

Operation mode register

Peripheral function

select register

Input function

enable

(Note 1)

Port input level

switching function

(Standard:

peripheral schmitt)

Port input data selection

Direction register

Port output latch

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