Main Board - Panasonic KX-TVM200E Service Manual

6.1.

MAIN BOARD

On the main board are: the system control components consisting of the CPU, ROM, RAM, ASIC; external interfaces such as
LAN, USB, and HDD interfaces; modem and slot card optional interfaces; and power supply control unit.
SPECIFICATIONS OF THE MAIN BOARD
BLOCK
CPU Hitachi SH7706
SH3 Core RISC-micro processor
ROM 8Mbit x 1
RAM 128Mbit x 1
ASIC Intelligent
(iVDC) Device Controller (Custom LSI for
PCC Voice mail system)
SRAM 8Mbit x 1
Voice data buffer
LAN Driver: SMSC LAN 91C113
USB RUNESAS M66591
Local Bus Gate Local Bus Gate & Gate control
Slot Interface Circuit Slot Interface Circuit for 4-port
Digital Interface Card (KX-
TVA204/TVM204X)
HDD Interface Circuit ATA interface
Modem Cardslot Modem card option slot
DC-DC ConverterCircuit 3.3v for main card
1.9v for CPU core power
1.9vB for CPU RTC
3.3v for slot card
12v for HDD mortar power
5v for HDD Logic power
SPECIFICATIONS
Voice & Peripheral
CN105, CN106
MAP No.
IC111 Core frequency: 131.072MHz
Bus frequency: 65.536MHz
IC105 8Mbit Nor-Flash ROM
IC106 32Mbyte SDRAM
4Mx16bit x 4bank
cycle time<75nS
IC112 Operation Frequency: 65.536MHz
IC113 512kbit x 16
IC144 16bit 10/100 Non-PCI
Ethernet
Frequency: 25MHz
IC145 USB2.0 Peripheral controller
Frequency: 24MHz
IC161, IC109, Gate control of the primary bus only for SDRAMs and the
IC101~IC104, secondary bus only for local devices is performed.
IC169, IC171,
IC122, IC123
8bit data bus, Voice data serial bus, card select signal,
control signal, Card power
- 40pin 3.5"HDD ATA interface
CN104 The serial transceiver signal for modem card control, a
reset control signal, and a power supply.
- 3.3v: DC-DC converter
1.9v: DC-DC converter
1.9vB: Regulator
12V: DC-DC converter
5V: DC-DC converter
33
KX-TVM200E / KX-TVM200NE
DESCRIPTIONS