HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 181

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

5.3.7
Vector number setting register A (VCRA) is a 16-bit read/write register that sets the E-DMAC
interrupt vector numbers (0–127). VCRA is initialized to H'0000 by a reset. It is not initialized in
standby mode.
Bits 15 and 7—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 14 to 8—Ethernet Controller Direct Memory Access Controller (E-DMAC) Interrupt Vector
Number 6 to 0 (EINV6–EINV0): These bits set the vector number for ethernet controller direct
memory access controller (E-DMAC) interrupt (EINT). There are seven bits, so the value can be
set between 0 and 127.
Bits 6 to 0—Reserved: These bits always read 0. The write value should always be 0.
5.3.8
Vector number setting register B (VCRB) is a 16-bit read/write register. Access to this register is
prohibited. VCRB is initialized to H'0000 by a reset. It is not initialized in standby mode.
Initial value:
Initial value:
Initial value:
Initial value:
Vector Number Setting Register A (VCRA)
Vector Number Setting Register B (VCRB)
R/W:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
Bit:
15
—
—
15
—
—
0
R
7
0
R
0
R
7
0
R
EINV6
R/W
14
—
14
—
—
0
6
0
R
0
R
6
0
R
EINV5
R/W
13
—
13
—
—
0
5
0
R
0
R
5
0
R
EINV4
R/W
12
—
12
—
—
0
4
0
R
0
R
4
0
R
EINV3
R/W
11
—
11
—
—
0
3
0
R
0
R
3
0
R
EINV2
R/W
10
—
10
—
—
0
2
0
R
0
R
2
0
R
EINV1
R/W
—
—
—
9
0
1
0
R
9
0
R
1
0
R
EINV0
R/W
—
—
—
8
0
0
0
R
8
0
R
0
0
R
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