參數(shù)資料
型號(hào)： MX98725
廠商： Electronic Theatre Controls, Inc.
英文描述： SINGLE CHIP FAST ETHERNET NIC CONTROLLER
中文描述： 單晶片快速以太網(wǎng)卡控制器
文件頁(yè)數(shù)： 22/33頁(yè)
文件大?。?/td> 177K
代理商： MX98725
22
P/N:PM0488
REV. 1.7, SEP. 15, 1998
MX98725
Field
13
Name
WR
Description
Boot ROM/EEPROM write operation select bit.
Operation definition:
RD
1
0
1
If RD=1 and WR=1, then a EEPROM re-load operation is enabled, the entire content of
boot ROM will be reloaded just like the auto-load function after power-up or hardware
reset.
Boot ROM Select, set to select boot ROM only if CSR9<11>=0.
Serial ROM Select, set to select serial ROM for either read or write operation.
If boot ROM is selected ( CSR9<12> is set ), this field contains the data to be read from
and written to the boot ROM. If serial ROM is selected, CSR9<3:0> are defined as
follows:
3
SDO
Serial ROM data out from serial ROM into MX98715/MX98725.
2
SDI
Serial ROM data input to serial ROM from MX98715/MX98725.
1
SCLK
Serial clock output to serial ROM.
0
SCS
Chip select output to serial ROM.
WR
0
1
1
Operation
Boot ROM/EEPROM Read
Boot ROM/EEPROM Write
EEPROM re-load operation (SR=1)
12
11
7:0
BR
SR
Data
Warning : CSR9<11> and CSR9<12> should be mutually exclusive for correct operations.
5.2.11 GENERAL PURPOSE TIMER ( CSR11 )
5.2.10 FLASH MEMORY PROGRAMMING ADDRESS REGISTER ( CSR10 )
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
bit 17:0=boot ROM address
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CON-Continuous Mode
Timer Value
Field
16
Name
CON
Description
When set,the general purpose timer is in continuous operating mode. When reset, the
timer is in one-shot mode.
Value contains the timer value in a cycle time of 204.8us.
15:0
Timer
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參數(shù)描述
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