HD6473032F Datasheet, PDF(72/572 Page) Hitachi Semiconductor – Hitachi Microcomputer

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HD6473032F Datasheet, PDF (72/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

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3.2 Mode Control Register (MDCR)

MDCR is an 8-bit read-only register that indicates the current operating mode of the H8/3032

Series.

Bit

7

6

5

4

3

2

1

0

â

â

â

â

â

â

MDS1 MDS0

Initial value

1

1

0

0

0

1

â*

â*

Read/Write

â

â

â

â

â

â

R

R

Reserved bits

Note: * Determined by pins MD1 and MD0.

Mode select 1 and 0

Bits indicating the current

operating mode

Bits 7 and 6âReserved: Read-only bits, always read as 1.

Bits 5 to 3âReserved: Read-only bits, always read as 0.

Bit 2âReserved: Read-only bit, always read as 1.

Bits 1 and 0âMode Select 1 and 0 (MDS1 and MDS0): These bits indicate the logic levels at

pins MD1 and MD0 (the current operating mode). MDS1 and MDS0 correspond to MD1 and

MD0. MDS1 and MDS0 are read-only bits. The mode pin (MD1 and MD0) levels are latched

when MDCR is read.

57

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