MAX6956 Maxim, MAX6956 Datasheet - Page 12

• Manufacturer Part Number: MAX6956
• Description: 2-Wire-Interfaced / 2.5V to 5.5V / 20-Port or 28-Port LED Display Driver and I/O Expander
• Manufacturer: Maxim

2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port LED Display Driver and I/O Expander
Table 5. Register Address Map
12
No-Op
Global Current
Configuration
Transition Detect Mask
Display Test
Port Configuration P7, P6, P5, P4
Port Configuration P11, P10, P9, P8
Port Configuration P15, P14, P13, P12
Port Configuration P19, P18, P17, P16
Port Configuration P23, P22, P21, P20
Port Configuration P27, P26, P25, P24
Port Configuration P31, P30, P29, P28
Current054
Current076
Current098
Current0BA
Current0DC
Current0FE
Current110
Current132
Current154
Current176
Current198
Current1BA
Current1DC
Current1FE
Port 0 only (virtual port, no action)
Port 1 only (virtual port, no action)
Port 2 only (virtual port, no action)
Port 3 only (virtual port, no action)
Port 4 only (data bit D0; D7–D1 read as 0)
Port 5 only (data bit D0; D7–D1 read as 0)
Port 6 only (data bit D0; D7–D1 read as 0)
Port 7 only (data bit D0; D7–D1 read as 0)
Port 8 only (data bit D0; D7–D1 read as 0)
Port 9 only (data bit D0; D7–D1 read as 0)
Port 10 only (data bit D0; D7–D1 read as 0)
______________________________________________________________________________________
REGISTER
D15
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
D14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
COMMAND ADDRESS
D12
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
D11
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
D10
0
0
1
1
1
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
D9
0
1
0
1
1
0
1
1
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
D8
0
0
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
CODE
0x1C
0x1D
0x0A
0x0B
0x0C
0x0D
0x0E
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
HEX
0x00
0x02
0x04
0x06
0x07
0x09
0x0F
0x12
0x13