Panasonic UF-5500 Service Manual page 188

UF-5500 / 4500
USB (Universal Serial Bus) block
Description
This is a USB block for data communication with PC.
Two signal lines (D+/D-) are differential signals which work in reverse phase.
VBUS: CN300 1pin
D-: CN300 2pin
D+: CN300 3pin
GND: CN300 4pin
Circuit Diagram
IC300
Y23
AFESEL0
Y24
AFESEL1
Y26
DP
AA24
AFERST
AA25
RING
AB24
BTXD
AB25
BRXD
AC24
ATXD
AD26
ARXD
AE26
ABITCLK
AC25
BBITCLK
AD25
ASPCLK
AC26
BSPCLK
AB26
AFECLK
Y25
EXMDMCS
AA26
EXTINT
AF5
COL
AD6
CRS AFESIFDOUT
AE6
TX_CLKI
AF6
TX_EN
AC7
TXD0
AD7
TXD1
AE7
TXD2
AF7
TXD3
AC8
TX_ER
AE8
RX_CLKI
AD8
RX_DV
AF8
RXD0
AC9
RXD1 USBVDDA33_BIAS
AD9
RXD2 USBVDDA12_SQ
AE9
RXD3 USBVDDA12PLL
AD10
RX_ER USBVDDA33
USBVDDA12
AF9
MDIO USBVSSA33_BIAS
AE10
MDC USBVSSA12_SQ
AF10
MGTINT USBVSSA12PLL
AF18
LSI_TCK
AD16
LSI_TRSTN
AF17
LSI_TMS
AE17
LSI_TDI
AC16
LSI_SCAN_ENABLE
AC19
LSI_TN
AF19
LSI_CW_TAP
AE18
LSI_PROCMON
AD17
LSI_TDO RTCPWRDWN
AE19
LSI_IDDT
Sequence of normal operation
When USB cable from PC is connected to CN300, VBUS voltage goes up to 5V, and IC300 recognize the connection with PC.
Then D+ becomes about 3V : waveform (1)-1
The D+ becomes 0V, then communication between IC300 and PC is started : waveform (2)-1
When a few seconds elapsed after USB cable was inserted into CN300,the unit enters stand-by mode.
When PC is at Hi-Speed, waveforms are (1)-1 ~ (1)-4.
When PC is at Full Speed,waveforms are (2)-1 ~ (2)-4.
C6
CCDSH
B6 0 L361
NCCDRS
A5
NCCDCP
A6
CCDCLK
220 L363
B5
AFEVSMP
B4
AFERSMP
L364
R386
A4
AFEMCLK
B1
AFEADC0
C2
AFEADC1
D3
AFEADC2
C1
AFEADC3
D2 33 L365 AFEADC[0]
AFEADC4
D1
33 L366 AFEADC[1]
AFEADC5
E3 33 L367 AFEADC[2]
AFEADC6
E2 33 L368 AFEADC[3]
AFEADC7
F3
220 L369
AFESIFCLK
G4 220 L370
AFESIFEN
G3
AFESIFDIN
H4 220 L371
C5
OEB
A3
NCCDON
C4
LEDONR
B3
LEDONG
A2
LEDONB
+3.3V +1.2V +1.2V
AF11
USBVBUS
AE12
USBID
AE13
USBDM
AF13
USBDP
AC12 R376
USBREXT
AF12
F6.98k
AD14
R385
AE15
AF14
1
AE16
AD12
AE14
C308
AF15
AD13
USBVSSA33 K0.22u
C310
AD15
USBVSSA12
AC15
USBXIN
C311
R384
AF16
USBXOUT
100
AD4
NBATRST
AE5 2F;2:2E;3:2E
3:5E
CCDSH
3:5E
CCDCLK
3:5D
AFEVSMP
220
3:5D
AFEMCLK
3:5E
AFEADC[0-3]
3:5E
AFESIFCLK
3:5D
AFESIFEN
3:5D
AFESIFDOUT
3:4D
NCCDON
3:5E
LEDONR
3:5E
LEDONG
3:5E
LEDONB
R339
22k
R336 0
R337 0
J22p
J27p
XSYSRST
188
+3.3V
7
1
2
3
L300
2 3 4
5
R387
1 4
C321
8
CN300
6
1M
Z0.1u