7721 datasheet(198/577 Pages) RENESAS

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REAL-TIME OUTPUT

7721 Group User’s Manual

10–5

10.2 Block description

10.2.2 Pulse output data registers 0 and 1

Figure 10.2.2 shows the structure of the pulse output data registers 0 and 1. The bit position of the RTP02

and RTP03 pulse output data bits differs according to the pulse mode. Before setting the pulse output data

registers 0 and 1, set of the pulse output mode select bit (bit 2 at address 6216).

The data written into the pulse output data registers 0 and 1 is output from the corresponding pulse output

pins every underflow of Timers A0 and A1.

Bit

Bit name

Functions

7 to 4

RTP00 pulse output data bit

Pulse output data register 0 (Address 1A16)

At reset

Undefined

0 : “L” level output

1 : “H” level output

Note: Use the LDM or STA instruction for writing to this register

RTP01 pulse output data bit

RTP02 pulse output data bit

(Valid in pulse mode 0)

RTP03 pulse output data bit

(Valid in pulse mode 0)

Nothing is assigned.

Bit

Bit name

Functions

0, 1

Nothing is assigned.

Pulse output data register 1 (Address 1C16)

At reset

Undefined

0 : “L” level output

1 : “H” level output

Note: Use the LDM or STA instruction for writing to this register.

RTP03 pulse output data bit

(Valid in pulse mode 1)

RTP02 pulse output data bit

(Valid in pulse mode 1)

RTP10 pulse output data bit

RTP11 pulse output data bit

RTP12 pulse output data bit

RTP13 pulse output data bit

Undefined

Fig. 10.2.2 Structure of pulse output data registers 0 and 1

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