Panasonic KX-TDA600BX

8 EMPR CARD CIRCUIT OPERATION
8.1. EMPR CARD
8.1.1. Outline
1) Function
•
• •
• System Control
•
• •
• Circuit Switching (includes gain adjustment function)
•
• •
• Conference Call (3 people x 8 ~ 8 people x 3)
•
• •
• MOH
•
• •
• PAGING
•
• •
• Clock
2) Configuration
•
• •
• Power Supply: DC/DC Converter
•
• •
• CPU: HITACHI SH7750R (200MHz)
•
• •
• ASIC: Our own products
•
• •
• ROM: 8Mbit x 1 (for boot programs)
•
• •
• SDRAM: 256Mbit x 2 (for work area)
•
• •
• SRAM: 16Mbit x 2 (for user data backup)
•
• •
• SD card I/F (for operating programs) x 1
•
• •
• USB I/F (for PC programming) x 1
•
• •
• MOH: External sound input x 2
•
• •
• PAGING: External output x 2
•
• •
• Expanded memory connector x 1
•
• •
• Modem card connector x 1
3) Operation Rating
•
• •
• Power Input : +15V
•
• •
• Internal Voltage
+15V (for MOH)
+3.3V (for I/O)
+3.3VBB (back board signal line pull-up)
+3.3VB (for SRAM, RTC backup)
+1.5V (for CPU core)
29
KX-TDA600BX