HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 617

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

604
Set TE or RE bit to 1 in SCSCR,
Set data transmit/receive format
and set RIE, TIE, and MPIE bits
Clear TFRST and RFRST bits
Set RIE, TIE, MPIE, CKE1,
Clear TE and RE bits to 0
TTRG1–0 bits in SCFCR,
and CKE0 bits in SCSCR
(leaving TE and RE bits
Set RTRG1–0 bits and
1-bit interval elapsed?
and clear TFRST and
Set value in SCBRR
RFRST bits to 0
to 1 in SCFCR
cleared to 0)
Initialization
in SCSMR
in SCSCR
Figure 14.17 Sample SCIF Initialization Flowchart
End
Yes
Wait
No
1. Set the clock selection in SCSCR.
2. Set the transmit/receive format in
3. Write a value corresponding to the
4. Wait at least one bit interval, then
Be sure to clear bits RIE, TIE,
MPIE, TE, and RE to 0.
the serial mode register (SCSMR).
bit rate into the bit rate register
(SCBRR). (Not necessary if an
external clock is used.)
set the TE bit or RE bit to 1 in
SCSCR.
Also set the RIE, TIE, and MPIE
bits. Setting the TE and RE bits
simultaneously enables the TxD
and RxD pins to be used.