Read Panasonic KX-TDA6181X Service Manual online
7 CIRCUIT OPERATIONS
7.1. CONTROL-SYSTEM CIRCUIT
7.1.1. CPU Peripherals
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• CPU (System clock: 12.288 MHz)......IC401
Data bus: 16bit, Address bus: 23bit
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• Flash ROM (512Kbyte)......IC402
Flash memory consists of two areas: boot space and administration space.
Administration program can be rewritten through downloading.
Administration program can be rewritten through downloading.
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• SRAM (128Kbyte)......IC403
Used for the data buffer for CPU work area.
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• Reset
Resets of an ELCOT16 card are roughly classified into the two kinds: ASIC reset and LPR reset.
After the release of the ASIC reset, the LPR reset is released by the soft reset from the side of the main card and the LPR
program is booted.
After the release of the ASIC reset, the LPR reset is released by the soft reset from the side of the main card and the LPR
program is booted.
Type of reset
Reset method
Specification
ASIC reset
ASIC reset is reset under the AND condition of reset signals (negative logic)
listed below.
listed below.
Power-on reset
Reset by reset IC
Hard reset from the main bus
Reset by EC_RST signal
Soft reset from the main bus
Released after the specified time
LPR reset
Soft reset from the main bus
Low active
Reset pulse width: 1.6 microseconds or more
Reset pulse width: 1.6 microseconds or more
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• LED Operation status indicating LED (Two colors)
OFF: Fault
Red ON: Fault (RESET included)
Green ON: Normal (Line not in use)
Green Flash (60/minute): Normal (Line in use)
Red ON: Fault (RESET included)
Green ON: Normal (Line not in use)
Green Flash (60/minute): Normal (Line in use)
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KX-TDA6181X
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