HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 200

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

5.3.27
Vector number setting register U (VCRU) is a 16-bit read/write register that sets the serial I/O 2
(SIO2) receive-data-full interrupt and transmit-data-empty interrupt vector numbers (0–127).
VCRU 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—Serial I/O 2 (SIO2) Receive-Data-Full Interrupt Vector Number 6 to 0 (RDF2V6–
RDF2V0): These bits set the vector number for the serial I/O 2 (SIO2) receive-data-full interrupt.
There are seven bits, so the value can be set between 0 and 127.
Bits 6 to 0—Serial I/O 2 (SIO2) Transmit-Data-Empty Interrupt Vector Number 6 to 0 (TDE2V6–
TDE2V0): These bits set the vector number for the serial I/O 2 (SIO2) transmit-data-empty
interrupt. There are seven bits, so the value can be set between 0 and 127.
Tables 5.6 and 5.7 show the relationship between on-chip peripheral module interrupts and
interrupt vector number setting registers.
182
Initial value:
Initial value:
Vector Number Setting Register U (VCRU)
R/W:
R/W:
Bit:
Bit:
15
—
—
0
R
7
0
R
RDF2V6 RDF2V5 RDF2V4 RDF2V3 RDF2V2 RDF2V1 RDF2V0
TDE2V6 TDE2V5 TDE2V4 TDE2V3 TDE2V2 TDE2V1 TDE2V0
R/W
R/W
14
0
6
0
R/W
R/W
13
0
5
0
R/W
R/W
12
0
4
0
R/W
R/W
11
0
3
0
R/W
R/W
10
0
2
0
R/W
R/W
9
0
1
0
R/W
R/W
8
0
0
0