h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 550

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 Smart Card Interface
14.3.6
Initialization: Before transmitting and receiving data, initialize the SCI as described below.
Initialization is also necessary when switching from transmit mode to receive mode, or vice versa.
[1] Clear the TE and RE bits in SCR to 0.
[2] Clear the error flags ERS, PER, and ORER in SSR to 0.
[3] Set the GM, BLK, O/E, BCP1, BCP0, CKS1, CKS0 bits in SMR. Set the PE bit to 1.
[4] Set the SMIF, SDIR, and SINV bits in SCMR.
[5] Set the value corresponding to the bit rate in BRR.
[6] Set the CKE0 and CKE1 bits in SCR. Clear the TIE, RIE, TE, RE, MPIE, and TEIE bits to 0.
[7] Wait at least one bit interval, then set the TIE, RIE, TE, and RE bits in SCR. Do not set the TE
Rev. 5.00 Sep 22, 2005 page 524 of 1136
REJ09B0257-0500
When the SMIF bit is set to 1, the TxD and RxD pins are both switched from ports to SCI pins,
and are placed in the high-impedance state.
If the CKE0 bit is set to 1, the clock is output from the SCK pin.
bit and RE bit at the same time, except for self-diagnosis.
Data Transfer Operations