Acessory Asic; General Information - Panasonic EB-GD93 Technical Manual
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Also See for EB-GD93:
- Operating instructions manual (72 pages) ,
- Service manual (79 pages)
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6.12. Accessory ASIC
6.12.1. General Information
PWT
RTC IC
(not GD52)
PWL
BACKLIGHT
UART
Modem
The Accessory ASIC (U604) consists of the following:
• LED drivers
• BUZZER driver
• Level shifter for UART interface
• Accessory control I/O lines
• Audio drives
6.12.2. Registers
The Accessory ASIC is controlled by setting registers through the Hercules UART interface.
The Control block contains four registers accessed via the serial interface.
R0, R1 and R2 are 8-bit write only registers
R3 is an 8-bit read-only register
Serial Interface bit
R/W
A1
A0
0
0
0
0
0
D7
MCUK001001G8
Technical Guide
U602
U604
ACC. ASIC
uWIRE I/F
PATH
ACC. I/F
CTRL
LED
DRIVER
UART
I/F
ACCESSORY
CONNECTOR
Figure 6.7: Accessory ASIC (U604)
Bit function R0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
PAGING_LED
Not used
OMEGA (part)
PHF
DRIVER
DTHF
DRIVER
I/O
CTLR
Bit function R1
Bit function R2
0
1
0
0
0
0
0
0
AUDIO_ON
Section 6
– 25 –
BASEBAND OVERVIEW
HEADSET
JACK
10206-1
Bit function R3
1
1
1
0
0
0
0
0
SENSE0
Issue 1
Revision 0
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