以前のリビジョンの文書です

DI 機能

MA-E3xx シリーズでは CPLD により実装していた、チャタリング除去フィルター、カウンターの機能をマイコンで実装しています。
機能は I2C 経由(Bus No.1, I2C-Address 0x4f)で利用します。

アドレスマップ

DI 機能は I2C の下記アドレスにマップされています。

Name	Address	Bit	Reset Value	Description
Filtered DI(R/O)	0x06	[7:5] Reserved
		[4] OPT-Switch		OPT-Switch
		[3:0] DI3..0		DI Status
DI Polarity(R/W)	0x0b	[7:5] Reserved	xxx
		[4] OPT-Switch	x	OPT-Switch
		[3:0] DI3..0 Polarity	0000	0: Rising / 1: Falling
Counter Control (R/W)	0x10	[7:5] Reserved	xxx
		[4] Counter4 Start (OPT-Switch)	0	1: Enable
		[3] Counter3 Start	0
		[2] Counter2 Start	0
		[1] Counter1 Start	0
		[0] Counter0 Start	0
Counter Match Enable (R/W)	0x11	[7:5] Reserved	xxx
		[4] Counter4 Match Event Enable	0	1: Enable
		[3] Counter3 Match Event Enable	0
		[2] Counter2 Match Event Enable	0
		[1] Counter1 Match Event Enable	0
		[0] Counter0 Match Event Enable	0
Counter Match Status (R/W1c)	0x12	[7:5] Reserved	xxx
		[4] Counter4 Match	0	1: Match / Write 1 to clear
		[3] Counter3 Match	0
		[2] Counter2 Match	0
		[1] Counter1 Match	0
		[0] Counter0 Match	0
Counter Compare0 (R/W)	0x13	[7:0]	00000000
Counter Compare1 (R/W)	0x14	[7:0]	00000000
Counter Compare2 (R/W)	0x15	[7:0]	00000000
Counter Compare3 (R/W)	0x16	[7:0]	00000000
Counter Compare4 (R/W)	0x17	[7:0]	00000000
Counter Value0 (R/W)	0x18	[7:0]	00000000
Counter Value1 (R/W)	0x19	[7:0]	00000000
Counter Value2 (R/W)	0x1a	[7:0]	00000000
Counter Value3 (R/W)	0x1b	[7:0]	00000000
Counter Value4 (R/W)	0x1c	[7:0]	00000000