Panasonic KX-FG2452CX Service Manual page 18

KX-FG2452CX
NO. SIGNAL
114 XRESETI
115 WDERR
116 THDAT
117 THCLK
118 THLAT
119 STBNP
120 RM0/IOP00
121 RM1/IOP01
122 RM2/IOP02
123 RM3/IOP03
124 RXE/IP04
125 TMO/IOP10
126 VDD (2.5V)
127 VSS
128 TM1/IOP11
129 TM2/IOP12
130 TM3/IOP13
131 TXE/IP14
132 KSTART
133 KLATCH
134 KSCLK
135 KTXD
136 KRXD
137 FMEMCLK/IOP24/CCLK
138 FMEMDI/IOP25/CBUSY1
139 ADSEL1
140 VDDA (2.5V)
141 VREFB
142 VCL
143 VREFT
144 VSSA
6.3.4. Flash ROM (IC502)
The 512KB ROM (FLASH ROM) carries a common area of 32KB and bank areas which each have 8KB (BK4~BK63). The
addresses from 0000H to 7FFFH are for the common area and from 8000H to 9FFFH are for the bank areas.
6.3.5. Dynamic RAM (IC503)
The DRAM serves as CPU and receives memory.
The address is F200H~F3FFH (DRAM access window 1) and F600H~F7FFH (DRAM access window 2).
I/O POWER SUPPLIED
VOLTAGE
I 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
I 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
-----
GND
O 3.3V
O 3.3V
O 3.3V
I 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
I 3.3V
I 3.3V
I 3.3V
O 3.3V
2.5V
A 3.3V
A 3.3V
A 3.3V
GND
18
DESCRIPTION
RESET INPUT
WATCHED ERROR OUTPUT SIGNAL
RECORDED IMAGE OUTPUT
CLOCK OUTPUT FOR DATA TRANSFER
PULSE OUTPUT FOR DATA LATCH
INPUT PORT (CHARGE)
MOTOR A PHASE
MOTOR B PHASE
MOTOR /A PHASE
MOTOR /B PHASE
MOTOR ENABLE SIGNAL
OUTPUT PORT(CRESET)
POWER SOURCE (+2.5V)
POWER SOURCE (GND)
OUTPUT PORT(S-ENB)
OUTPUT PORT(TELRXEN)
OUTPUT PORT(TONE2EN)
INPUT PORT(MOTOR-PS)
OPERATION PANEL CONTROL
OPERATION PANEL CONTROL
OPERATION PANEL CONTROL
OPERATION PANEL CONTROL
OPERATION PANEL CONTROL
INPUT PORT (CCLK)
INPUT PORT (CBUSY1)
CHANNEL SELECT SIGNAL FOR AIN2
POWER SOURCE (ANALOG +2.5V)
A/D CONVERTER'S ZERO STANDARD VOLTAGE
OUTPUT
ANALOG PART STANDARD VOLTAGE SIGNAL
A/D CONVERTER'S FULL SCALE VOLTAGE OUTPUT
POWER SOURCE (ANALOG GND)