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R0P7727TH003TRKE General Information Manual
6. Power Supply Controller
6.1. Power Supply Controller Functions
The H8/3048F-ONE power supply controller (simply called the power supply controller) provides the following
control functions with firmware stored in the internal memory.
through the UART ChA from the SH7727. Figure 6.1 shows a power supply controller block diagram.
(1) RTC (real-time clock) function
(2) System power supply (3.3V/5/0V) ON/OFF control function
(3) Touch panel coordinate position read function
(4) Key switch input function
(5) 8-bit LED ON/OFF function
(6) Infrared remote control transmission/reception function
(7) Electronic volume
(8) Serial EEPROM read/write function
These functions can be controlled through the UART chA from SH7727.
1.8V ON/OFF
(Vcc)
-
SH7727 CPUcore
-
SH7290 CPU core
3.3V ON/OFF
(VCC3A)
-
SH7727
-
SDRAM (SH7727)
-
FLASH (SH7727)
Infrared remote control
LCD board
Receiving unit
Though the power supply controller's I/O port is connected to the /RTSA and /CTSA pins of the UART
controller (ST16C2550) through the circuit, the power supply controller does not execute hardware
control during communications with SH7727. For details of communications between SH7727 and the
power supply controller, refer to 6.2 "Serial Communications between SH7727 and the Power Supply
Controller."
3.3V ON/OFF
(VCC3B)
-
5V ON/OFF
UART
(5V)
-
PCMCIA
-
USB power
-
USB HUB
supply
-Sound
-Sound generator
generator IC
amplifier
-
SIM card
-ATA card power
supply
H8 reset
circuit
SH7727
Reset signal for devices
other than H8/3048F
Reset
/RESET
circuit
NMI
PINT11
BUS
/CTSA
/RTSA
RXA
TXA
EXTAL
ST16C2550CQ48
(UART)
LED
Transmission
Figure 6.1 Power Supply Control Block Diagram
The following functions can be controlled
H8/3048F-ONE
P40
/IRQ1
P50
P41
P52
P42
P53
TXD1
RXD1
SCK1
P43
/RESET
PB6
/IRQ0(P80)
P51
PA4
P22
P21
P20
P60
P14
P61
P13
P12
P62
P11
P10
P17
P16
PA6
AN0
AN1
PA5
P25
P82(/IRQ2)
P24
P27
TXD0
P44
RXD0
P45
CK
P46
/IRQ3(P83)
TIOCA3(PB0)
PA2
TIOCA4(PB2)
PA1
TIOCB2(PA7)
8
P30-P37
/IRQ4(P94)
P66
CAUTION
41
Power Supply Controller
MAX5413ECD
RV5C348A(RTC)
(Electronic volume)
/INT
/CS
CE
SCLK
DIN
SI
SO
CLK
29391AFJA(EEPROM)
CS
D0
D1
/SK
LCD board
LCD
ADS7843E(Touch panel)
DIN
DOUT
DCLK
/PENIRQ
/CS
Cursor switch (SW1)
Push-buttonswitch
(SW2, 3)
VOUT2
VOUT1
ADP_IN
VOLT
AMP
SIGN
H8_SW2
H8_SW1
LTC1555LEGN
Power supply
M0
(battery monitoring)
M1
M2
Power-on switch
eTRON socket
NMI switch
Reset switch
8bit LED
DIPSW5-8
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