Data Sheet
ADuC7019/20/21/22/24/25/26/27/28/29
Access
Byte Type
Default
Value
Access
Byte Type
Default
Value
Address Name
Page
Address Name
Page
Reference Address Base = 0xFFFF0480
I2C0 Base Address = 0xFFFF0800
0x048C
REFCON
1
R/W
0x00
50
0x0800
0x0804
0x0808
0x080C
0x0810
0x0814
0x0818
0x081C
0x0824
0x0828
0x082C
0x0830
0x0838
0x083C
0x0840
0x0844
0x0848
0x084C
I2C0MSTA
I2C0SSTA
I2C0SRX
I2C0STX
I2C0MRX
I2C0MTX
I2C0CNT
I2C0ADR
I2C0BYTE
I2C0ALT
I2C0CFG
I2C0DIV
I2C0ID0
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
R/W
R
R
W
R
0x00
0x01
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x1F1F
0x00
0x00
0x00
0x00
0x01
0x0000
76
76
77
77
77
77
77
77
77
78
78
79
79
79
79
79
79
79
ADC Address Base = 0xFFFF0500
0x0500
0x0504
0x0508
0x050C
0x0510
0x0514
0x0530
0x0534
ADCCON
ADCCP
2
1
1
1
4
1
2
2
R/W
R/W
R/W
R
0x0600
0x00
0x01
0x00
0x00000000
0x00
46
47
47
48
48
48
48
48
W
ADCCN
ADCSTA
ADCDAT
ADCRST
ADCGN
ADCOF
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
0x0200
0x0200
DAC Address Base = 0xFFFF0600
I2C0ID1
I2C0ID2
I2C0ID3
I2C0CCNT
I2C0FSTA
0x0600
0x0604
0x0608
0x060C
0x0610
0x0614
0x0618
0x061C
DAC0CON
DAC0DAT
DAC1CON
DAC1DAT
DAC2CON
DAC2DAT
DAC3CON
DAC3DAT
1
4
1
4
1
4
1
4
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0x00
0x00000000
0x00
0x00000000
0x00
0x00000000
0x00
56
56
56
56
56
56
56
56
I2C1 Base Address = 0xFFFF0900
0x0900
0x0904
0x0908
0x090C
0x0910
0x0914
0x0918
0x091C
0x0924
0x0928
0x092C
0x0930
0x0938
0x093C
0x0940
0x0944
0x0948
0x094C
I2C1MSTA
I2C1SSTA
I2C1SRX
I2C1STX
I2C1MRX
I2C1MTX
I2C1CNT
I2C1ADR
I2C1BYTE
I2C1ALT
I2C1CFG
I2C1DIV
I2C1ID0
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
R/W
R
R
W
R
0x00
0x01
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x1F1F
0x00
0x00
0x00
0x00
0x01
0x0000
76
76
77
77
77
77
77
77
77
78
78
79
79
79
79
79
79
79
0x00000000
UART Base Address = 0xFFFF0700
0x0700
COMTX
COMRX
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R
0x00
0x00
0x00
0x00
0x00
0x01
0x00
0x00
0x60
0x00
0x00
0x04
0x01
0xAA
0x0000
71
71
71
71
72
72
72
72
72
73
73
73
73
74
73
W
COMDIV0
COMIEN0
COMDIV1
COMIID0
COMCON0
COMCON1
COMSTA0
COMSTA1
COMSCR
COMIEN1
COMIID1
COMADR
COMDIV2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0x0704
0x0708
0x070C
0x0710
0x0714
0x0718
0x071C
0x0720
0x0724
0x0728
0x072C
R
I2C1ID1
I2C1ID2
I2C1ID3
I2C1CCNT
I2C1FSTA
R/W
R/W
R
R/W
R/W
SPI Base Address = 0xFFFF0A00
0x0A00
0x0A04
0x0A08
0x0A0C
0x0A10
SPISTA
SPIRX
SPITX
SPIDIV
SPICON
1
1
1
1
2
R
R
W
R/W
R/W
0x00
0x00
0x00
0x1B
0x0000
75
75
75
75
75
Rev. F | Page 43 of 104
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