UPD77533 datasheet(60/104 Pages) RENESAS

60 / 104 page

Data Sheet S15671EJ4V0DS

µµµµPD77533

[Remark]

The

µPD77533 is shifted to sleep mode after the specified time has elapsed, without performing positioning,

command transmission reception, or other such processing.

Triggers such as command reception, the WKUPB signal, a reset, and a timer interrupt are used to restore the

µPD77533 from the HALT mode.

The

µPD77533 is restored from STOP mode to RUN mode by the WKUPB signal, and is totally initialized and

restarted by a reset.

16.9 Character Timeout

[Function]

Sets and references the character timeout time.

Figure 16-9. Character Timeout Flow

[Command]

Table 16-10. Format of Character Timeout

Field

Number of Bytes

Form

Description

CMD-ID

−

0x13

LENGTH

−

3 = Sets timeout time

0 = References current timeout time

DATA

Time until timeout

(when LENGTH = 3)

unsigned

Time until timeout occurs. Unit = ms.

0 = Timeout not detected (default)

FLAG

−

0x03

[Response]

The value set or current value is returned in the format shown in Table 16-10.

[Remark]

If the specified timeout time elapses after the last data of a packet has been received by the

µPD77533 before

packet reception is complete, a timeout occurs.

When a timeout occurs, the

µPD77533 returns the timeout error status and discards the packet data received until

that point.

PD77533

Host CPU

CMD-ID = 0x13

UPD77533 데이터시트(PDF) 60 Page - Renesas Technology Corp

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