参数资料
型号: STPCE1EEBC
厂商: STMICROELECTRONICS
元件分类: 外设及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA388
封装: PLASTIC, BGA-388
文件页数: 24/87页
文件大小: 1426K
代理商: STPCE1EEBC
Obsolete
Product(s)
- Obsolete
Product(s)
STRAP OPTION
30/87
Release 1.3 - January 29, 2002
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
3.1.3. STRAP REGISTER 2 CONFIGURATION
Strap2
Access = 0022h/0023h
Regoffset = 04Ch
76543210
Rsv
MD23
Rsv
MD19
MD18
MD17
MD16
This register defaults to the values sampled on MD[23] and MD[19:16] pins after reset
Bit Number Sampled
Mnemonic
Description
Bits 7-6
Rsv
Reserved
Bit 5
MD23
Reserved
Bit 4
Rsv
Reserved
Bit 3
MD19
Reserved
Bit 2
MD18
Reserved
Bit 1
MD17
This bit, programmed in parallel with MD[4], reflects the value sampled
on MD[17] pin and controls the PCI clock output, as given in Table 3-3.
Bit 0
MD16
Reserved
Table 3-3. PCI Clock Output
MD[4]
MD[17]
Description
0
X
PCI clock output = HCLK / 4
1
0
PCI clock output = HCLK / 3
1
PCI clock output = HCLK / 2
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