Hitachi C15-LC880SNT Service Manual page 28

INFORMATION OF ICS
IC GM5221 PQFP-208 (System Interface)
Pin No. Pin Name
81 GPIO0
82 GPIO1
83 GPIO2
84 GPIO3
85 GPIO4
88 GPIO5
89 GPIO6
90 GPIO7/IRQin
91 GPIO8/IRQout
92 GPIO9/SCL
93 GPIO10/SDA
98 GPIO11/PWM0
99 GPIO12/PWM1
100 GPIO13/PWM2
101 GPIO14/PWM3
69 GPIO15
77 DDC_SCL_VGA
78 DDC_SDA_VGA
79 DDC_SCL_DVI
80 DDC_SDA_DVD
178 RESETn
172 LBADC_VDD_3.3
173 LBADC_IN1
174 LBADC_IN2
175 LBADC_IN3
176
LBADC_RETURN
177 LBADC_GND
71
HOST_SCL/UART_DI
72
HOST_SCL/UART_DO
66 JTAG_TDI JTAG
64 JTAG_TDO
56 JTAG_RESET
General-purpose input/output signals
[Bi-directional, Schmitt trigger, 5V-tolerant]
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-
tolerant] or OCM interrupt and chip status.
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-
tolerant] or master device on serial interface bus.
General-purpose input/output signals or PWM signals. [Bi-directional,
Schmitt trigger, 5V-tolerant]
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-tolerant]
DDC2Bi clock for VGA Port
DDC2Bi data for VGA Port [internal 10KΩ, pull-up resistor]
DDC2Bi and HDCP clock for DVI Port
DC2Bi and HDCP data for DVI Port [internal 10KΩ, pull-up resistor]
Hardware Reset (active low) [Schmitt trigger, 5V-tolerant] Connect to
ground with 0.01uF (or larger) capacitor. See section, Chip
Initialization, for detail
Analog 3.3V power supply for general-purpose ADC
LBADC channel 1
LBADC channel 2
LBADC channel 3
Analog Ground (signal return path) for LBADC channels 1, 2 and 3
Ground
Host input clock or 186 UART Data In or JTAG clock signal. [Input,
Schmitt trigger, 5V-Tolerant]
Host input data or 186 UART Data out or JTAG mode signal.
[Bi-directional, Schmitt trigger, slew rate limited, 5V-Tolerant]
Data input signal.
JTAG data output signal.
JTAG reset signal.
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Description