Legacy-Free Keyboard/Embedded Controller with SPI and LPC Docking Interface
Table 18.12 PWM3 Frequency Multiply Register
0xB3
MAILBOX
INDEX
0x7F9A
8051
ADDRESS
VCC1
0x00
POWER
DEFAULT
BIT
D7
D6
D5
D4
D3
D2
D1
R/W
D0
R/W
R
R
R
R
R
R
R
R
R
R
R
MBX TYPE
8051 R/W
R
R/W
R/W
Reserved Reserved Reserved Reserved Reserved Reserved Frequency Multiplier
(See Table 18.13)
BIT NAME
Table 18.13 Frequency Multiplier Bits
BIT SELECTION FOR FREQUENCY
MULTIPLIER BITS
DESCRIPTION
00
01
10
11
1x
1x the current frequency selected for PWM
2x the current frequency selected for PWM
4x the current frequency selected for PWM
8x the current frequency selected for PWM
2x
4x
8x
SMSC LPC47N350
209
Revision 1.1 (01-14-03)
DATASHEET
SMSC [ SMSC CORPORATION ]
