MAX7302 Maxim, MAX7302 Datasheet - Page 8

• Manufacturer Part Number: MAX7302
• Description: The MAX7302 I²C-/SMBus™-compatible, serial-interfaced peripheral features 9 level-translating I/Os, and operates from a 1
• Manufacturer: Maxim

SMBus/I
Level-Translating GPIO and LED Driver with CLA
Table 1. Register Address Map
Table 2. Power-Up Register Status
8
Ports P1–P9
Configuration 26
Configuration 27
Ports CLA0 to CLA1
CLA0 to CLA1
Configuration 27 Lock,
Ports P1–P5 Lock
Ports P6–P9 Lock
Port P1 or INT Output
Port P2 or OSCIN Input
Port P3 or OSCOUT Output
Port P4
Port P5
Port P6
Port P7
Port P8
Port P9
Configuration 26
Configuration 27
Ports P2–P5 Configurable Logic CLA0
Ports P6–P9 Configurable Logic CLA1
Write Ports P2–P5 Same Data; Read P2
Write Ports P6–P9 Same Data; Read P6
FACTORY RESERVED (Do not write to these registers)
CLA0 and CLA1 Configurable Logic Enable
CLA0 and CLA1 Configurable Logic Lock
Configuration 67 Lock, Ports P1–P5 Lock
Ports P6–P9 Lock
FACTORY RESERVED (Do not write to these registers)
_______________________________________________________________________________________
REGISTER
2
C Interfaced 9-Port,
REGISTER
Ports P_ are V
and debounce disabled
RS T d oes not r eset r eg i ster s or counters; b l i nk p er i od
i s 1H z; tr ansi ti on fl ag cl ear ; i nterr up t status fl ag cl ear
Ports P1–P9 are GPIO ports; bus timeout is
disabled
Default gate structure
CLA not enable
Configuration 27 is not locked;
ports P1–P5 are not locked
Ports P6–P9 are not locked
POWER-UP CONDITION
LA
-referred input ports with interrupt
ADDRESS
0x3C–0x3F
0x3C
0x3D
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x26
0x27
0x28
0x29
0x70
0x71
0x72
0x73
0x00
CODE (HEX) D7 D6 D5 D4 D3 D2 D1 D0
ADDRESS
0x01–0x09
0x28–0x29
AUTOINCREMENT ADDRESS
0x26
0x27
0x70
0x72
0x73
0x0A or 0x4A
0x3F–0x40
0x2A
0x3D
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x27
0x28
0x29
0x3E
0x71
0x72
0x73
0x74
0x01
1
1
1
0
0
0
1
0
1
0
0
0
0
1
REGISTER DATA
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
1
1
0
0
0
0
POR STATE
0
1
1
0
0
0
0
0xCC
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x8F
0x00
0x00
0x80
0x80
0x00
0x00
0x00
0x00
0xF0
0x80
0
0
1
0
0
0
0
0
0
1
0
0
0
0