ICP DAS USA 7188XA Series User Manual page 34

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1.3.3 Specifications of 7188XC & 7188XCD
System
l Module name: embedded controller
l CPU: Am188™ES, 20M Hz
l SRAM: 128K bytes
l FLASH ROM: 256K bytes
l COM port: COM1, COM2
l Built-in EEPROM, D/I, D/O
l Supports I/O Expansion Bus
l Program download port: COM1
EEPROM
l 2048 bytes ( 8 blocks, each block has 256 bytes)
l Data retention > 100 years
l 1,000,000 erase/write cycles
Flash Memory
l 256K bytes
l Erase unit is one sector(64K bytes)
l 100,000 erase/write cycles
COM1
l RS-232 or RS-485
l RS-232: TXD,RXD,RTS,CTS,GND
l RS-485: D1+, D1-, self-tuner ASIC inside
l Communication speed: 115200 max.
COM2
l RS-485: D2+, D2-, self-tuner ASIC inside
l Communication speed: 115200 max.
l Direct connect to 7000 RS-485 network
7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User' s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
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