Datasheet

Analog Integrated Circuit Device Data
135 Freescale Semiconductor
MC34708
Functional Block Description
Unused 22-20 R 0x0
Not available
READVALID 23 R MUSBRSTB 0x0
Read data valid
0: Data not valid
1: Data valid
Table 143. Register 38, USB Button
Name Bit # R/W Reset Default Description
Send_End 0 R/C MUSBRSTB 0x0
1: the Send_End button is pressed
S1 1 R/C MUSBRSTB 0x0
1: button 1 is pressed
S2 2 R/C MUSBRSTB 0x0
1: button 2 is pressed
S3 3 R/C MUSBRSTB 0x0
1: button 3 is pressed
S4 4 R/C MUSBRSTB 0x0
1: button 4 is pressed
S5 5 R/C MUSBRSTB 0x0
1: button 5 is pressed
S6 6 R/C MUSBRSTB 0x0
1: button 6 is pressed
S7 7 R/C MUSBRSTB 0x0
1: button 7 is pressed
S8 8 R/C MUSBRSTB 0x0
1: button 8 is pressed
S9 9 R/C MUSBRSTB 0x0
1: button 9 is pressed
S10 10 R/C MUSBRSTB 0x0
1: button 10 is pressed
S11 11 R/C MUSBRSTB 0x0
1: button 11 is pressed
S12 12 R/C MUSBRSTB 0x0
1: button 12 is pressed
ERROR 13 R/C MUSBRSTB 0x0
1: button error occurred
UNKNOWN 14 R/C MUSBRSTB 0x0
1: an unknown button is pressed
Unused 23-15 R 0x000
Not available
Table 144. Register 39, USB Control
Name Bit # R/W Reset Default Description
Wait 0 R/W MUSBRSTB 0x1
Wait or not to wait for the command from the baseband
before turning on the analog or digital switches for attached
accessory
0: Wait until this bit is changed to 1. Turn on the switches
immediately when this bit is changed to 1.
1: Wait for only the time programmed by the Switching Wait
bits in Timing Set 2 register before turning on the switches.
Manual S/W 1 R/W MUSBRSTB 0x1
Manual or automatic switching of the switches
0: manual: the switches are controlled by the Manual S/W
registers.
1: auto: the switches are controlled by the Device Type
registers
RAWDATA 2 R/W MUSBRSTB 0x1
Interrupt behavior selection
0: Enable the ADC conversion periodically and report the
ADC Result changes on ID pin to the host.
1: Enable the key press monitor circuit to detect the ID pin
status changes and report the key press events to the host.
Table 142. Register 37, USB timing
Name Bit # R/W Reset Default Description