W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 68

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.5
Attribute:
Size:
The register is meaningful only when CPUFANOUT is programmed for PWM output.
8.6
Attribute:
Size:
DEFAULT
DEFAULT
PWM Output
(Bank 0, Index
04h, bit 1 is 0)
DC Voltage
Output (Bank 0,
Index 04h, bit 1 is
1)
FUNCTION MODE
NAME
NAME
BIT
6-0
7
BIT
BIT
CPUFANOUT PWM Output Frequency Configuration Register - Index 02h
(Bank 0)
CPUFANOUT Output Value Select Register - Index 03h (Bank 0)
PWM_CLK_SEL2 (CPUFANOUT PWM Input Clock Source Select). This bit selects the
clock source for PWM output.
0: The clock source is 24 MHz.
1: The clock source is 180 KHz.
PWM_SCALE2 (CPUFANOUT PWM Pre-Scale Divider). The clock source for PWM
output is divided by this seven-bit value to calculate the actual PWM output frequency.
The maximum value of the divider is 127 (7Fh), and it should not be set to 0.
PWM output frequency =
PWM_CLK_SEL2
7
7
0
DESCRIPTION
DESCRIPTION
DEFAULT
DEFAULT
6
Read/Write
8 bits
Read/Write
8 bits
6
0
CPUFANOUT PWM Duty. The PWM duty cycle is equal to this
8-bit value, divided by 255, times 100%. FFh creates a duty
cycle of 100%, and creates a duty cycle of 0%.
Strap by FAN_SET (Pin 119)
CPUFANOUT Voltage Control. The output
voltage is calculated according to this equation:
OUTPUT Voltage =
Strap by FAN_SET (Pin 119)
7
5
Pre_Scale
Strap by FAN_SET (Pin 119)
Input
5
0
6
CPUFANOUT0 Value
DESCRIPTION
Clock
-57-
4
Divider
4
0
5
AVCC
PWM_SCALE2
∗
3
256
1
4
3
0
Publication Release Date: May 25, 2007
*
FANOUT
64
3
2
2
1
W83627UHG
2
1
1
0
Reserved
1
Revision 1.0
0
0
0
0