HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 799

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

22.3.1
ACTR is the control register for AFEIF and is composed of ACTR1 and ACTR2. ACTR1 is
mainly used for FIFO control commands. ACTR2 is used for AFE control commands and DAA
control commands.
• ACTR1
Bit
15
14 to 8
7
6, 5
4
3
2
AFEIF Control Register 1 and 2 (ACTR1, ACTR2)
Bit Name
HC

DLB

FFSZ2
FFSZ1
FFSZ0
Initial Value
0
All 0
0
All 0
0
0
0
R/W
R/W
R
R/W
R
R/W
R/W
R/W
This bit controls AFE. AFE_HC1 signal is made
to high directly often the next serial transmit data
transfer, when this bit is written to 1. Then ACDR
data (AFE control word) is transferred by
founding the second AFE.FS. AFEIF module
automatically makes AFE_HC1 signal to low and
HC bit to 0, directly after transferring the AFE
control word. See section 22.4.2, AFE Interface
for more detail about AFE control sequences.
These bits are always read as 0. The write value
should always be 0.
0: Normal operation
1: Digital loop back between transmit FIFO and
These bits are always read as 0. The write value
should always be 0.
FIFO Interrupt Size Set 2 to 0
Specifies the size of FIFO. FIFO size to generate
interrupt (TFE, RFF, THE, and RHF) is assigned
as listed in table 22.2.
Description
AFE Hardware Control
Reserved
FIFO Digital Loop Back
Reserved
receive FIFO is performed. In this time the
transmit data is output to AFE_TXOUT, too.
Section 22
Rev. 3.00 Jan. 18, 2008 Page 737 of 1458
Analog Front End Interface (AFEIF)
REJ09B0033-0300