參數(shù)資料
型號: TC3299A
廠商: Electronic Theatre Controls, Inc.
英文描述: Ethernet PCMCIA Controller + COMBO Transceiver
中文描述: PCMCIA控制器組合以太網(wǎng)收發(fā)器
文件頁數(shù): 9/26頁
文件大小: 1301K
代理商: TC3299A
TC3299A
Preliminary Data Sheet
PJ1,0 : If MA12 isn
'
t pulled low during power on reset, despite of the value of PJ1,0, TC3299A response
to I/O access at the I/O base address 300h, 320h, 340h, 360h. otherwise, I/O base Map as below:
PJ1 PJ0 I/O base Map
0 0 300h
0 1 320h
1 0 340h
1 1 360h
PJ1,0 : Reserved
Configuration Registers 1 (CCR1)
7
6
5
4
XX
XX
XX
XX
IREQ : Controller interrupt status
XX : Reserved
2.1
Power On Configuration
3
XX
2
XX
1
0
XX
IREQ
The EPCC Controller configures itself after a RST signal is applied. When a Power-On-Reset occurs the
EPCC Controller latches the values on the configuration pins and uses these to configure the internal
registers and options. Internally these pins contain pull-up resistance. If these configuration pins are
unconnected the default logic will be applied. The configuration registers are loaded from the memory data
bus when RST goes inactive.
A Power-On-Reset also causes the EPCC Controller to load the internal PROM store from the EEPROM,
which can take up to 3 ms. This occurs after Config-Regs (Configuration registers) have completed. If
EECONFIG is high (MA9 pull down) the configuration data loaded on the falling edge of RST will be
overwritten by the data read from the serial EEPROM. Regardless of the level on EECONFIG the PROM
store will always be loaded with data from the serial EEPROM during the time specified as EELOAD.
Figure 1 shows how the RESET circuitry operates.
VCC
RESET
Regload
EEload
The EPCC Controller users an 93C56/66, The programmed contents of the EEPROM is shown as following.
D15
......
CIS byte n
......
16H
........
14H
........
12H
CIS byte 3
D0
CIS byte n-1
........
........
CIS byte 2
Confidential.
Copyright
2003, IC Plus Corp.
9/26
August 27, 20003
TC3299A-DS-R30
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