CHAPTER 13 REAL-TIME OUTPUT FUNCTION (RTO)
User’s Manual U13850EJ4V0UM
370
13.2 Configuration
RTO includes the following hardware.
Table 13-1. Configuration of RTO
Item
Configuration
Registers
Real-time output buffer registers (RTBL, RTBH)
Control registers
Real-time output port mode register (RTPM)
Real-time output port control register (RTPC)
(1) Real-time output buffer registers (RTBL, RTBH)
RTBL and RTBH are 4-bit registers that hold output data in advance.
These registers are mapped to independent addresses in the peripheral I/O register area as shown in Figure 13-
2.
If an operation mode of 4 bits
×
2 channels is specified, data can be individually set to RTBL and RTBH. The
data of both the registers can be read all at once by specifying the address of either of the registers.
If an operation mode of 8 bits
×
1 channel is specified, 8-bit data can be set to both RTBL and RTBH respectively
by writing the data to either of the registers. The data of both the registers can be read all at once by specifying
the address of either of the registers.
Figure 13-2 shows the configuration of RTBL and RTBH, and Table 13-2 shows the operation to be performed
when RTBL and RTBH are manipulated.
Figure 13-2. Configuration of Real-Time Output Buffer Registers
Higher 4 bits
Lower 4 bits
RTBL
RTBH
Содержание MPD703030A
Страница 2: ...User s Manual U13850EJ4V0UM 2 MEMO ...
Страница 514: ...User s Manual U13850EJ4V0UM 514 MEMO ...