HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 161

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

5.1.3
Table 5.1 shows the INTC pin configuration.
Table 5.1
Name
Nonmaskable interrupt input pin
Level request interrupt input pins
Interrupt acceptance level output
pins
External vector fetch pin
External vector number input pins
5.1.4
The INTC has the 31 registers shown in table 5.2. These registers perform various INTC functions
including setting interrupt priority, and controlling external interrupt input signal detection.
Table 5.2
Name
Interrupt priority register setting register A IPRA
Interrupt priority register setting register B IPRB
Interrupt priority register setting register C IPRC
Interrupt priority register setting register D IPRD
Interrupt priority register setting register E IPRE
Vector number setting register A
Vector number setting register B*
Vector number setting register C
Vector number setting register D
Vector number setting register E
Vector number setting register F
Vector number setting register G
Pin Configuration
Register Configuration
Pin Configuration
Register Configuration
3
Abbreviation
NMI
IRL3 –IRL0
A3–A0
IVECF
D7–D0
Abbr.
VCRA
VCRB
VCRC
VCRD
VCRE
VCRF
VCRG
I/O
I
I
O
O
I
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/W
Function
Input of nonmaskable interrupt request
signal
Input of maskable interrupt request
signals
In external vector mode, output an
interrupt level signal when an IRL/IRQ
interrupt is accepted
Indicates external vector read cycle
Input external vector number
Initial
Value
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
H'0000
Address
H'FFFFFEE2 8, 16
H'FFFFFE60
H'FFFFFEE6 8, 16
H'FFFFFE40
H'FFFFFEC0 8, 16
H'FFFFFE62
H'FFFFFE64
H'FFFFFE66
H'FFFFFE68
H'FFFFFE42
H'FFFFFE44
H'FFFFFE46
Access
Size
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
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