71M6541D Datasheet, PDF (64/166 Pages) Maxim Integrated Products – 0.1% Accuracy Over 2000:1 Current Range Energy Meter ICs

71M6541D/F/G and 71M6542F/G Data Sheet
Table 53: Data/Direction Registers for SEGDIO16 to SEGDIO31 (71M6542F/G)
SEGDIO
Pin #
Configuration:
0 = DIO, 1 = LCD
SEG Data Register
DIO Data Register
Direction Register:
0 = input, 1 = output
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
28 27 25 24 23 22 21 20 19 18 17 16 11 10 9 8
0 1 23 4 5 6 7 01 2 34 56 7
LCD_MAP[23:16] (I/O RAM 0x2409)
LCD_MAP[31:24] (I/O RAM 0x2408)
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
LCD_SEGDIO16[5:0] to LCD_SEGDIO31[5:0]
(I/O RAM 0x2420[5:0] to 0x242F[5:0])
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
LCD_SEGDIO16[0] to LCD_SEGDIO31[0]
(I/O RAM 0x2420[0] to 0x242F[0])
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
LCD_SEGDIO16[1] to LCD_SEGDIO31[1]
(I/O RAM 0x2420[1] to 0x242F[1])
Table 54: Data/Direction Registers for SEGDIO32 to SEGDIO45 (71M6542F/G)
SEGDIO
32 33 34 35 36 37 38 39 40 41 42 43 44 45
Pin #
7 6 5 4 3 2 1 100 99 98 97 96 95 94
Configuration:
0 = DIO, 1 = LCD
01234567012345
LCD_MAP[39:32]
(I/O RAM 0x2407)
LCD_MAP[45:40]
(I/O RAM 0x2406[5:0])
32 33 34 35 36 37 38 39 40 41 42 43 44 45
SEG Data Register
LCD_SEGDIO32[5:0] to LCD_SEGDIO45[5:0]
(I/O RAM 0x2430[5:0] to 0x243D[5:0])
32 33 34 35 36 37 38 39 40 41 42 43 44 45
DIO Data Register
LCD_SEGDIO32[0] to LCD_SEGDIO45[0]
(I/O RAM 0x2430[0] to 0x243D[0])
Direction Register: ^{32 33 34 35 36 37 38 39 40 41 42 43 44 45}
0 = input, 1 = output
LCD_SEGDIO32[1] to LCD_SEGDIO45[1]
(I/O RAM 0x2430[1] to 0x243D[1])
Table 55: Data/Direction Registers for SEGDIO51 to SEGDIO55 (71M6542F/G)
SEGDIO
Pin #
Configuration:
0 = DIO, 1 = LCD
SEG Data Register
DIO Data Register
Direction Register:
0 = input, 1 = output
51 52 53 54 55 – – –
53 52 51 47 46 – – –
01234–––
LCD_MAP[55:51]
(I/O RAM 0x2405[7:3])
51 52 53 54 55 – – –
LCD_SEGDIO51[5:0] to LCD_SEGDIO55[5:0]
(I/O RAM 0x2443[5:0] to 0x2447[5:0])
51 52 53 54 55 – – –
LCD_SEGDIO51[0] to LCD_SEGDIO55[0]
(I/O RAM 0x2443[0] to 0x2447[0])
51 52 53 54 55 – – –
LCD_SEGDIO51[1] to LCD_SEGDIO55[1]
(I/O RAM 0x2443[1] to 0x2447[1])