TMPR3916 datasheet(162/225 Pages) TOSHIBA

Il numero della parte	TMPR3916

Spiegazioni elettronici	32-Bit TX System RISC TX39 Family TMPR3916

PDF	225 Pages

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Produttore elettronici	TOSHIBA [Toshiba Semiconductor]

Homepage	http://www.semicon.toshiba.co.jp/eng

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Chapter 9 Synchronous Serial I/O (TXSEI)

Preliminary

9-7

SEI Control Register 1 (SECR1)

The number of bits per frame is configured using this register. This register could only be written, when

the module is in configuration mode.

Bit

3130

292827

262524

Name



Bit

2322

212019

181716

Name



Bit

1514

131211

Name

SER

Bit

543

210

Name



SSZ

Bit

Name

Function

Reset

Value

R/W

31:16



Unused

0x0000

15:8

SER

In master-mode, this setting controls the bit-rate for transmission.

The internal clock rate generator is implemented as a down counter.

The SER setting specifies the reload value for this counter.

0x01

R/W

7:5



wired to zero

4:0

SSZ

Transfer Size

0x05 = 5 bits

0x06 = 6 bits

...

0x10 = 16 bits

others = invalid setting

Note: If SSZ has an invalid setting, the TXSEI will not work properly.

R/W

This register can only be written, if TXSEI is in configuration mode.

The clock-rate on the SEI bus can be calculated using the following formula:

(

⋅

SER

system

SEI

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