M32CSLASH8B datasheet(301/406 Pages) RENESAS

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b7 b6 b5 b4

Symbol

PD0 to PD3

PD4 to PD7

PD8

PD9, PD10

PD11

PD12, PD13

PD14

PD15

Address

03E2h, 03E3h, 03E6h, 03E7h

03EAh, 03EBh, 03C2h, 03C3h

03C6h(4)

03C7h(1), 03CAh

03CBh(3, 4)

03CEh, 03CFh(3)

03D2h(3, 4)

03D3h(3)

After Reset

00h

00X0 0000b

00h

XXX0 0000b

00h

X000 0000b

00h

Function

Bit Symbol

Bit Name

PDi_5

PDi_7

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_3 direction bit

Port Pi_7 direction bit

PDi_4

PDi_3

0: Input mode (functions as input port)

1: Output mode (functions as output port)

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_5 direction bit

Port Pi_6 direction bit

0: Input mode (functions as input port)

1: Output mode (functions as output port)

PDi_6

Port Pi Direction Register (i = 0 to 15)(2)

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_4 direction bit

NOTES:

1. Set the PD9 register immediately after the PRC2 bit in the PRCR register is set to 1 (write enable). Do not generate an interrupt or a

DMA or DMACII transfer between these two instructions.

2. In memory expansion mode or microprocessor mode, the PDi register corresponding to the following bus control pins cannot be written:

A0 to A22, A23, D0 to D15, CS0 to CS3, WRL/ WR, WRH/BHE, RD, BCLK/ALE/CLKOUT, HLDA/ALE, HOLD, ALE, RDY.

3. Set registers PD11 to PD15 to FFh in the 100-pin package.

4. Nothing is implemented to the PD8_5 bit in the PD8 register, bits PD11_7 to PD11_5 in the PD11 register, and the P14_7 bit in the

PD14 register. Write a 0. A read from these bits returns undefined value.

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_1 direction bit

PDi_1

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_2 direction bit

PDi_2

0: Input mode (functions as input port)

1: Output mode (functions as output port)

Port Pi_0 direction bit

PDi_0

Under development

M32C/8B Group

22. Programmable I/O Ports

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 284 of 385

Figure 22.4

Programmable I/O Ports (4/4)

Figure 22.5

PD0 to PD15 Registers

Input-only port (P8_5)

Data bus

NMI

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