ABOV SEMICONDUCTOR MC81F4204 - Page 54

MC81F4204
54 April 24, 2012 Ver.1.41
Address
Hex
Register Name Mnemonic R/W Initial value
00DCH R3 Port Control Register High Byte R3CONH R/W – – 0 0 0 0 0 0
00DDH R3 Port Control Register Low Byte R3CONL R/W 1 0 0 1 1 – – –
00E1H RAM Page Selection Register RPR R/W – – – – – – – 0
00E5H Buzzer Control Register BUZR R/W 1 1 0 0 – – – –
00E6H Buzzer Period Data Register BUPDR R/W 1 1 1 1 1 1 1 1
00E7H SIO Control Register SIOCR R/W – – 0 0 0 0 0 0
00E8H SIO Data Register SIODAT R/W 0 0 0 0 0 0 0 0
00E9H SIO Prescaler Register SIOPS R/W 0 0 0 0 0 0 0 0
00EAH Interrupt Enable Register High Byte IENH R/W 0 0 0 0 0 0 – –
00EBH Interrupt Enable Register Low Byte IENL R/W – 0 – – – 0 – 0
00ECH Interrupt Request Register High Byte IRQH R/W 0 0 0 0 0 0 – –
00EDH Interrupt Request Register Low Byte IRQL R/W – 0 – – – 0 – 0
00EEH Interrupt Flag Register High Byte INTFH R/W 0 0 0 0 0 0 – –
00F1H Basic Timer Counter Register BTCR R X X X X X X X X
00F2H Clock control Register CKCTLR R/W – – – 1 0 1 1 1
00F3H Power On Reset Control Register PORC R/W 0 0 0 0 0 0 0 0
00F4H Watchdog Timer Register WDTR R/W 0 1 1 1 1 1 1 1
00F5H Stop & Sleep Mode Control Register SSCR R/W 0 0 0 0 0 0 0 0
00F6H Watchdog Timer Status Register WDTSR R/W 0 0 0 0 0 0 0 0
00F7H Watchdog Timer Counter Register WDTCR R X X X X X X X X
Table 9-2 Control Register 2/4