2-76
Service Guide
Table 2-8
65555 Pin Functions (continued)
Ball
Pin Name
Type
Active
Description
B1
TD1(MCLKIN)
In
High
Test data input for boundary scan. Can be
configured to be used as an input for an externally
provided MCLK through a strapping option and
register programming. See the descriptions for
registers XR70 and XRCF for complete details
C2
TDO
In
High
Test data out for boundary scan.
D3
TRST#
In
High
Test reset for boundary scan.
Note:
TMS, TCLK, TDI, TDO and TRST#, are powered by BVCC and GND.
Miscellaneous
E4
STNDBT#
In
Low
Standby Control Pin. Pull this pin low to place the
chip in Standby Mode. A low to high transition on
the pin will cause change to exit standby mode,
host standby mode. and panel off mode.
C3
REFCLK(MCLKIN)
In
High
Reference Clock Input. This pin serves as the input
for an external reference oscillator (usually
14.31818 MHz). All timings of the 65555 are
derived from this primary clock input source. Can
be configured to be used as an input for an
externally provided MCLK through a strapping
option and register programming. For normal
operation. TDI should be used as the input for an
externally provided MCLK
V1
GPIO0(ACTI)
I/O
High
General Purpose l/O pin, or ACTI (Activity
Indicator).
T4
GPIO1(32KHz)
I/O
High
General Purpose l/O pin, or 32KHz input: clock
input for refresh of non-self-refresh DRAMs and
panel power sequencing
D6
C5
A12
K19
N/C
N/C
N/C
N/C
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
These pins should be left open.
Y20
D8
D17
A4
B5
D4
U16
C20
E17
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
These pins are reserved for future use, and should
not be connected.
Note:
STANDBY#, RCLK, GPIO0, and GPIO1 are powered by DVCC and GND.
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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