MAX6966 Maxim, MAX6966 Datasheet - Page 15

• Manufacturer Part Number: MAX6966
• Description: The MAX6966/MAX6967 serial-interfaced peripherals provide microprocessors with 10 I/O ports rated to 7V
• Manufacturer: Maxim

Table 6. Output Registers Format
Port P0 is static-low logic-level logic
port with logic input buffer enabled;
reading this port returns 0. Still active
in shutdown.
Port P0 is static-high logic-level logic
port (high impedance without external
pullup) or logic input with logic input
buffer enabled; reading this port
returns 0 or 1, depending on external
conditions. Still active in shutdown.
Port P0 is static-low constant-current
sink (PWM disabled). Logic input
buffer is disabled; reading this port
always returns 0. High impedance in
shutdown.
Port P0 duty cycle is 3/256 current
sink. GPI logic input buffer is
disabled; reading this port always
returns 0. High impedance in
shutdown.
Port P0 duty cycle is 4/256 current
sink. GPI logic input buffer is
disabled; reading this port always
returns 0. High impedance in
shutdown.
—
Port P0 duty cycle is 253/256 current
sink. GPI logic input buffer is
disabled; reading this port always
returns 0. High impedance in
shutdown.
Port P0 duty cycle is 254/256 current
sink. GPI logic input buffer is
disabled; reading this port always
returns 0. High impedance in
shutdown.
Port P0 is static high impedance
(PWM disabled). GPI logic input
buffer is disabled; reading this port
always returns 0. High impedance in
shutdown.
PORT P0 LEVEL OR PWM
10-Port Constant-Current LED Drivers and I/O
REGISTER
______________________________________________________________________________________
Expanders with PWM Intensity Control
R/W
X
X
X
X
X
X
X
X
X
X
ADDRESS
CODE
(HEX)
0x00
MSB
D7
—
0
0
0
0
0
1
1
1
D6
—
0
0
0
0
0
1
1
1
OUTPUT P0 LEVEL AND PWM
D5
—
0
0
0
0
0
1
1
1
D4
—
0
0
0
0
0
1
1
1
BINARY
REGISTER DATA
D3
—
0
0
0
0
0
1
1
1
D2
—
0
0
0
0
1
1
1
1
D1
—
0
0
1
1
0
0
1
1
LSB
D0
—
0
1
0
1
0
1
0
1
0xFD
0x00
0x01
0x02
0x03
0x04
0xFE
0xFF
HEX
—
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