W83194BR-138 データシートの表示（PDF） - Winbond
部品番号
コンポーネント説明
一致するリスト
W83194BR-138 Datasheet PDF : 14 Pages
| |||
W83194BR-138
PRELIMINARY
5.1 Register 0: CPU Frequency Select Register
Bit @PowerUp
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Pin
Description
-
SSEL3 (Frequency table selection by software via I2C )
-
SSEL2 ( Frequency table selection by software via I2C)
-
SSEL1 ( Frequency table selection by software via I2C)
-
SSEL0 ( Frequency table selection by software via I2C)
-
0 = Selection by hardware
1 = Selection by software I2C - Bit (2, 7:4)
-
SSEL4 (Frequency table selection by software via I2C )
-
SSEL5 (Frequency table selection by software via I2C )
-
0 = Running
1 = Tristate all outputs
5.2 Register 1 : CPU Clock Register (1 = Active, 0 = Inactive)
Bit @PowerUp Pin
escription
7
X
- FS0#
6
X
- FS1#
5
X
- FS2#
4
X
- FS3#
3
X
- FS4#
2
0
- 1 = ±0.25% Center type Spread Spectrum Modulation
0 = ±0.5% Center type Spread Spectrum Modulation
1
0
- 0 = Normal
1 = Spread Spectrum enabled
0
1
- 1 = Center type Spread Spectrum Modulation
0 = Down type Spread Spectrum Modulation
5.3 Register 2: SDRAM Clock Register (1 = Active, 0 = Inactive)
Bit @PowerUp Pin
Description
7
1
SDRAM7 (Active / Inactive)
6
1
SDRAM6 (Active / Inactive)
5
1
SDRAM5 (Active / Inactive)
4
1
SDRAM4 (Active / Inactive)
3
1
SDRAM3 (Active / Inactive)
2
1
SDRAM2 (Active / Inactive)
1
1
SDRAM1 (Active / Inactive)
0
1
SDRAM0 (Active / Inactive)
Publication Release Date: May 2000
-8-
Revision 0.37
Share Link: 