Read Panasonic KX-HTS32RU / KX-HTS824RU Service Manual online
19
KX-HTS32\KX-HTS824 Series
4.2.1.6.
USB Function
This system supports USB2.0 USB host connector. By connecting USB memory devices system operating data can be backup or
restored.
restored.
4.2.1.7.
RTC Function
This system has Real Time Clock (RTC) device which is battery backed up.
When system starts up, software will get current time from RTC.
When system starts up, software will get current time from RTC.
USB
USB 2.0 1port
Connector
USB Host (Type-A)
Speed
USB 2.0 High speed (480Mbps) /Full speed (12Mbps)
Power
3.3V USB internal PLL
2.5V USB analog PHY function
5V USB Bus Power (up to 500mA)
2.5V USB analog PHY function
5V USB Bus Power (up to 500mA)
Clock
none
Reset
none
CPU Interface
SPI (3wire)
Power
0.9 - 5.5V/0.22uA
Clock
32.768kHz Xtal
Reset
none
LF301
1
2
4
3
USB_FLT0
R303
R301
+5V
USB-GND
DG
USB_EN0
C303
C301
TP301
DG
DG
C307
+3.3V_CPU
DG
R309
JK300
4
3
2
1
6
5
7
8
R347
R348
FG
USB-GND
R314
R305
D301
D303
D328
C309
IC301
1
VIN
2
GND
4
*OC
5
ILIM
3
EN
6
VOUT
Differential pair signal
USB 90ohm
USB0
Isolation Area
GND
+5V
DM
DP
(To CPU)
(From CPLD)
DG
B500
1
2
DIN
R506
R504
DG
TP_32.768kHz
D501
+3.3V_B
+3.3V_CPU
DG
DOUT
SCLK
TP_+3.3V_B
CS_SPI06
+3.3V_CPU
+3.3V_B
CL504
R507
C508
TP_+3V
X500
R545
R546
C506
IC500
1
OSCI
2
OSCO
3
CLKOE
4
*INT
5
VSS
6
CE
7
SCL
8
SDIO
9
CLKOUT
10
VDD
11
FRAME
D502
D503
C507
RTC and Backup battery
(From CPLD)
(To CPU)
(From CPU)
(From CPU)
Place on solder side
Place on solder side
Place on solder side
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