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| 型号： | TC9331F |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件页数： | 9/31页 |
| 文件大小： | 791K |
| 代理商： | TC9331F |
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TC9331F
2002-02-05
17
(2-4) The I/F dedicated register (Note 2)
Symbol
Function
STAD
The STAD is a presentable up-counter used in setting the starting address for writing data and
programs in the PRAM, CRAM, and OFRAM. (9 bit)
TXW
The TXW register is responsible for setting the rewrite data count (max 32 words) for the CRAM and
OFRAM when ACMP is in the 1 (CNT-R1) mode. (5 bit)
RMR
The RMR register temporarily retains data to be written to the PRAM, CRAM, OFRAM until it
receives subsequent data (32 bit). The RMR also acts as the source register for the data bus.
XINT
The XINT register sets up the IFF2~0, which act as conditional field flags. (3 bit)
XRMD
The XRMD register sets the following:
1. In the XSEP mode, sets the domains for the delay and table data partitions in the externally
attached RAM.
2. Sets the access frequency for the externally attached RAM.
3. Sets set to use or not use the × 4 bit 1M DRAM (5 bit) to active or inactive.
Note 2: The RMR and XINT data are latched via a SYNC signal.
(3)
The data transmission process.
When the CS signal is set to “L” or activated, data is transmitted in command word (1 byte) and
data word (1 to 4 byte) sets. Somewhat similar to the program, coefficient, and offset address
processes, the command word becomes unnecessary when data bits using the same command word
are transmitted successively; only the data word needs to be transmitted. In these situations, the
IFCD signal is set to “L” prior to the CS signal.
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