Datasheet

Analog Integrated Circuit Device Data
141 Freescale Semiconductor
MC34708
Functional Block Description
Table 157. Register 53, VBUS Monitoring
Name Bit # R/W Reset Default Description
VBUSTL[2:0] 2-0 R/W RESETB 0x3
VBUS threshold low
VBUSTH[2:0] 5-3 R/W RESETB 0x3
VBUS threshold high
Reserved 23-6 R/W NONE 0x00000
Reserved
Table 158. Register 54, LED Control
Name Bit # R/W Reset Default Description
CHRGLEDRPER[1:0] 1-0 R/W RESETB 0x0
LED red repetition period
CHRGLEDRRAMP 2 R/W RESETB 0x0
LED red channel driver ramp enable
CHRGLEDRDC[5:0] 8-3 R/W RESETB 0x00
LED red channel driver duty cycle
CHRGLEDR[1:0] 10-9 R/W RESETB 0x3
LED red driver current setting
CHRGLEDREN 11 R/W RESETB 0x0
LED red enable
CHRGLEDGPER[1:0] 13-12 R/W RESETB 0x0
LED green repetition period
CHRGLEDGRAMP 14 R/W RESETB 0x0
LED green channel driver ramp enable
CHRGLEDGDC[5:0] 20-15 R/W RESETB 0x00
LED green channel driver duty cycle
CHRGLEDG[1:0] 22-21 R/W RESETB 0x3
LED green driver current setting
CHRGLEDGEN 23 R/W RESETB 0x0
LED green enable
Table 159. Register 55, PWM Control
Name Bit # R/W Reset Default Description
PWM1DUTY[5:0] 5-0 R/W RESETB 0x00
PWM1 Duty Cycle
PWMCLKDIV[5:0] 11-6 R/W RESETB 0x00
PWM1 Clock Divide Setting
PWM2DUTY[5-0] 17-12 R/W RESETB 0x00
PWM2 Duty Cycle
PWM2CLKDIV[5:0] 23-18 R/W RESETB 0x00
PWM2 Clock Divide Setting
Table 160. Register 56 to 63, Unused
Name Bit # R/W Reset Default Description
Unused 0-23 R 0x000000 Not available