SH7727 Datasheet, PDF (705/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 20 Serial IO (SIOF)
(2) Frame Length
Frame length of SIOF transmitting is set by bits FL3 bit to FL0 in SIMDR register.
Table 20.5 shows relations between value and frame length.
Table 20.5 Frame Length
FL3, FL2, FL1, FL0
00 - -
0100
0101
0110
0111
10 - -
1100
1101
1110
1111
Slot Length
8
8
8
8
8
16
16
16
16
16
Bit/Frame
8
16
32
64
128
16
32
64
128
256
Support Transmit Data
8 bit monaural
8 bit monaural
8 bit monaural
8 bit monaural
8 bit monaural
16 bit monaural/stereo
16 bit monaural/stereo
16 bit monaural/stereo
16 bit monaural/stereo
16 bit monaural/stereo
(3) Slot Position
SIOF can set the position of transmit data, receive data, and control data (common in
transmit/receive) in 1 frame independently by slot number. The following register are used for this
setting.
• Transmit data: SITDAR register
• Receive data: SIRDAR register
• Control data: SICDAR register
Control data is effective when the slot length is 16 bit. The control data for transmission and
reception is always assigned to the same slot.
Rev. 5.00 Dec 12, 2005 page 633 of 1034
REJ09B0254-0500