HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 132

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

6.1.3 Register Configuration
The four DTC control registers are listed in table 6-1. These registers are not located in the
address space and cannot be written or read by the CPU. To set information in these registers, a
program must write the information in a table in memory from which it will be loaded by the
DTC.
Table 6-1 Internal Control Registers of the DTC
Name
Data transfer mode register
Data transfer source address register
Data transfer destination address register
Data transfer count register
IRQ
IRQ
0
1
DTMR:
DTSR:
DTDR:
DTCR:
DTEA to DTED:
Interrupt controller
DT Mode Register
DT Source Address Register
DT Destination Address Register
DT Count Register
Figure 6-1 Block Diagram of Data Transfer Controller
DTEA
DTEB
DTEC
DTED
DT Enable Register A to D
DTC request
Internal data bus
DTC
Abbreviation
DTMR
DTSR
DTDR
DTCR
114
DTMR
DTDR
DTCR
DTSR
Read/Write
Disabled
Disabled
Disabled
Disabled
Register
information table
0
Register
information table
1
RAM