Maxq family user’s guide: maxq2000 supplement – Maxim Integrated MAXQ Family Users Guide: MAXQ2000 Supplement User Manual
Page 44
MAXQ Family User’s Guide:
MAXQ2000 Supplement
Register Name:
EIE1
Register Description:
External Interrupt Enable 1 Register
Register Address:
M1[07h]
Each bit in this register controls the enable for one external interrupt. If the bit is set to 1, the interrupt is enabled (if it is not otherwise
masked). If the bit is set to 0, its corresponding interrupt is disabled.
Bit 0: (EIE1.0) External Interrupt 8 Enable (EX8)
Bit 1: (EIE1.1) External Interrupt 9 Enable (EX9)
Bit 2: (EIE1.2) External Interrupt 10 Enable (EX10)
Bit 3: (EIE1.3) External Interrupt 11 Enable (EX11)
Bit 4: (EIE1.4) External Interrupt 12 Enable (EX12)
Bit 5: (EIE1.5) External Interrupt 13 Enable (EX13)
Bit 6: (EIE1.6) External Interrupt 14 Enable (EX14)
Bit 7: (EIE1.7) External Interrupt 15 Enable (EX15)
Register Name:
PI4
Register Description:
Port 4 Input Register
Register Address:
M1[08h]
Bits 0 to 4: (PI4.0 to PI4.4) Port Pin Input Bits for P4.0 to P4.4. Each of these read-only bits reflects the logic state present at the
corresponding port pin.
Bits 5 to 7. (PI4.5 to PI4.7) Reserved
Register Name:
PI5
Register Description:
Port 5 Input Register
Register Address:
M1[09h]
Bits 0 to 7: (PI5.0 to PI5.7) Port Pin Input Bits for P5.0 to P5.7. Each of these read-only bits reflects the logic state present at the
corresponding port pin.
Bit #
7
6
5
4
3
2
1
0
Name
EX15
EX14
EX13
EX12
EX11
EX10
EX9
EX8
Reset
0
0
0
0
0
0
0
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Bit #
7
6
5
4
3
2
1
0
Name
—
—
—
PI4.4
PI4.3
PI4.2
PI4.1
PI4.0
Reset
0
0
0
s
s
s
s
s
Access
r
r
r
r
r
r
r
r
Bit #
7
6
5
4
3
2
1
0
Name
PI5.7
PI5.6
PI5.5
PI5.4
PI5.3
PI5.2
PI5.1
PI5.0
Reset
s
s
s
s
s
s
s
s
Access
r
r
r
r
r
r
r
r
Maxim Integrated
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