![](http://datasheet.mmic.net.cn/130000/TC9332F_datasheet_5017316/TC9332F_19.png)
TC9332F
19
(4-4) Dedicated interface registers
Start address register (STADR) (Note 7)
This register sets the address to start writing data to CRAM, OFRAM and MSEQ. It consists of
a presettable up-counter. (9 bit)
8
7
6
5
4
3
2
1
0
CRAM
RA8
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
OFRAM
0
RA5
RA4
RA3
RA2
RA1
RA0
MSEQ
don't care
RA3
RA2
RA1
RA0
When data are set in MSEQ, data are sent 1 byte at a time.
Note 7: Data are set in STADR asynchronously with the SYNC signal.
Transfer exchange write address register (TXWR) (Note 8)
When ACMPRQ in control register 1 (CNT-R1) is set to “1”, this register sets the length of data
to be overwritten to CRAM or OFRAM using interface buffer RAM.
Overwrites up to 16 word are supported. (4 bit)
TXWR
Number Of Words
Overwritten
TXW3
TXW2
TXW1
TXW0
1
0
2
0
1
15
1
0
16
1
Note 8: Data can be set in TXWR asynchronously with the SYNC signal.
Module sequencer (MSEQ) (Note 9)
The module sequencer sets the sequence in which the subroutines grouped in program ROM are
called.
It has a 16 word × 10 bit structure, and data are set by the microcontroller one word at a time
at the program ROM sequence start address. Set the 4 bit address of the sequencer, which sets
the data store sequence, in STADR.
Data cannot be transferred to the MSEQ using the interface buffer RAM.,
Note 9: MSEQ data is read in synchronously with the SYNC signal.
Coefficient RAM (CRAM) (Note 10)
The coefficient RAM has a 320 word × 16 bit structure, and data can be changed one word at a
time during each sampling period by the microcontroller communication procedure. Using the
interface buffer RAM, 16 word can be overwritten during each sampling period.
Note 10: Data can be set in CRAM asynchronously with the SYNC signal. (during continuous
setting)
Offset RAM (OFRAM) (Note 11)
The offset RAM has a 64 word × 16 bit structure, and the overwriting procedure is similar to
that of the CRAM.
Note 11:
Data can be set in OFRAM asynchronously with the SYNC signal. (during continuous
setting)