Panasonic KX-TDA600BX Service Manual page 34

KX-TDA600BX
Signal Name
M/nS
MD0-2
MELODYSEL
MEC_MODE[3:0]
MOHSEL
Mu/nA
nTDA600
POWTYPE[0] -[1]
nPRS_MEC
nPRS_RMT
nPRS_SDB
nRD
RD/nWR
nRESOUT
nRESET
nRESETM
RINGER
RING_SYNC
nRTS2
RTS_RMT
RXD2
RXD_RMT
SDCD
SDCLK
SDCMD
SDDAT0-3
SDWP
SHW_CLK
SHW_FH
TXD2
TXD_RMT
nUB
USB_D+
USB_D-
VBUS
VREF
nWAIT
nWE
Master/slave identification signal when SIC card (Future Option) as intersystem connection card is mounted. EMPR
inputs this signal and detects which the EMPR will be. H: Master L: Slave
Mode Control Terminal: Clock operation mode of CPU is set.MD2: L, MD1: L, MD0: H Fixed
Melody IC Tune Name Select L: Ju te veux H: Minuet
Information Bit to know the memory mounting capacity etc. of EMEC card.Reserve at present.
Switching Signal between internal hold sound source and external hold sound H: Internal L: External
Switching Signal of Sound Compression Law H: Mu-Law, L: A-Law
TDA600, TDA620 Identification Signal set on the back board. The EMPR inputs this signal and detects which the
EMPR will be. H: TDA200, L: TDA600
Power Supply Type:
POWTYPE [1] [0]
M Power Supply attached L H
L Power Supply attached H L
Press MEC: Information of EMEC Card Attachment L: Attached, H: Not attached
Press RMT: Information of RMT Card Attachment L: Attached, H: Not attached
Press SD card: Information of SD Card Attachment L: Attached, H: Not attached
Read: USB I/F, SD card I/F, ASIC, SRAM, Read signal for flash memory
Read/nWrite: Read/Write signal for SDRAM, BUS-M card.
Reset Out: Reset from CPU (IC200) to each card
Reset: Power-on reset signal
Manual Reset (Software reset): Manual reset request signal for CPU
Ringer Signal: Outputs square-wave of 16Hz/20Hz/25Hz as source signal of ringer
Trigger Signal of Ringer Signal generation timing to each internal line card
Request To Send to RS-232C connector
Request to Send: Flow signal for modem
Receive Data from RS-232C connector
Serial Data Output Terminal: ASIC
SD Card Detect Input
SD Card Clock Out
SD Command
SD Card Data
SD Card Write Protect Input
Intersystem Highway Clock Signal (4MHz) Bit clock of intersystem highway.
Intersystem Highway Synchronous Signal (8KHz) 8KHz frame synchronous signal of intersystem highway
Transmit Data to RS-232C connector
Serial Data Input Terminal: Data receiving terminal from RMT to UART in the ASIC
Upper Byte Select: SRAM
USB Data +
USB Data -
Bit indicating that power source is supplied to USB bus [Host (PC etc.) is connected.] H: Host connected L: Host not
connected
Reference Voltage for MOH Circuit Intermediate potential of +15V
Wait: Hardware wait request signal for bus timing between CPU and ASIC
Write Enable: WE signal of SRAM
Function
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