UCD9090
www.ti.com
PIN NAME
SLVSA30A –APRIL 2011–REVISED AUGUST 2011
Table 4. GPIO Pin Configuration Options
PIN
RAIL EN
(10 MAX)
GPI
(8 MAX)
GPO
(10 MAX)
PWM OUT
(10 MAX)
MARGIN PWM
(10 MAX)
FPWM1/GPIO5
FPWM2/GPIO6
FPWM3/GPIO7
FPWM4/GPIO8
FPWM5/GPIO9
FPWM6/GPIO10
FPWM7/GPIO11
FPWM8/GPIO12
GPI1/PWM1
GPI2/PWM2
GPIO1
11
12
13
14
15
16
17
18
24
25
5
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
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
X
X
X
X
X
X
X
X
X
X
X
GPIO2
6
GPIO3
7
GPIO4
8
GPIO13
19
22
23
26
27
28
29
30
31
GPIO14
GPIO15
GPIO16
GPIO17
TCK/GPIO18
TDO/GPIO19
TDI/GPIO20
TMS/GPIO21
GPO Control
The GPIOs when configured as outputs can be controlled by PMBus commands or through logic defined in
internal Boolean function blocks. Controlling GPOs by PMBus commands (GPIO_SELECT and GPIO_CONFIG)
can be used to have control over LEDs, enable switches, etc. with the use of an I2C interface. See the
UCD90xxx Sequencer and System Health Controller PMBus Command Reference for details on controlling a
GPO using PMBus commands.
Copyright © 2011, Texas Instruments Incorporated
23
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