7906 datasheet(440/531 Pages) RENESAS

440 / 531 page

7906 Group User’s Manual Rev.2.0

20-35

APPENDIX

Appendix 2. Control registers

2 to 0

7 to 2

Bit name

Bit

Function

At reset

R/W

External interrupt input read register (Address 9516)

The value is undefined at reading.

INT3 read out bit

INT4 read out bit

INT5 read out bit

INT6 read out bit

INT7 read out bit

Undefined

b7 b6 b5 b4 b3 b2 b1 b0

The input level at the corresponding pin is read out.

0 : “L” level

1 : “H” level

Bit name

Bit

Function

At reset

R/W

D-A0 output enable bit

D-A1 output enable bit

Nothing is assigned.

b7 b6 b5 b4 b3 b2 b1 b0

0: Output is disabled.

1: Output is enabled. (Notes 1, 2)

0: Output is disabled.

1: Output is enabled. (Notes 1, 2)

Undefined

—

D-A control register (Address 9616)

Notes 1: Pin DAi is multiplexed with an analog input pin, external interrupt input pin, and trigger input pin in the pulse output port mode.

When a D-Ai output enable bit = “1” (in other words, output is enabled.), however, the corresponding pin cannot function as

any other multiplexed input/output pin (including a programmable I/O port pin).

2: When not using the D-A converter, be sure to clear this bit to “0.”

7 to 0

Bit

D-A register i (i = 0 and 1) (Addresses 9816 and 9916)

Function

At reset

R/W

Any value in the range from 0016 through FF16 can be set (Note), and this

value will be D-A converted and will be output.

Reference

6-18

Reference

13-3

Reference

13-3

Note: When not using the D-A converter, be sure to clear the contents of these bits to “0016.”

7906 Datasheet(PDF) 440 Page - Renesas Technology Corp

7906 Datasheet(HTML) 440 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL