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Interconnection with external devices
A. RTC block interface
Countered by external X-TAL
The X-TAL oscillates 32.768KHz
B. LCD module interface
Controlled by LCD_CS, LCD_RES, LCD_A0, /WR, /RD, DATA [00...07] ports
LCD_CS
LCD_RES
LCD_A0
/WR, /RD
DATA [00...07] Parallel data line
C. RF interface
The AD6522 control RF parts through TXEN, RXON1, RXON2, AGCEN, SDATA, SCLK, SEN etc.
Signal Name
TXEN
RXON1
RXON2
AGCEN
SDATA
SCLK
SEN
Table 3-8. LCD Module Interface.
LCD chip enable
This pin resets LCD module
This pin determines whether the data to LCD module is display data or control data
Read/Write control
Table 3-9. RF Interface.
TX Enable/Disable
LNA, Mixer1 On/Off
Mixer 2 On/Off
AGC Enable/Disable
Serial Data to PLL
Clock to PLL
PLL Enable/Disable
Description
Description
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3. TECHNICAL BRIEF
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