HD64F2149YV datasheet(557/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1075 Pages

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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Section 16 I

2C Bus Interface

Rev. 3.00 Jan 18, 2006 page 529 of 1044

REJ09B0280-0300

SDA

(Master output)

SDA

(Slave output)

234

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

IRIC

IRTR

ICDR

SCL

(Master output)

Master transmit mode

Master receive mode

Data 1

Data 2

[2] ICDR read

(dummy read)

[1] TRS = 0 clear

WAIT = 1 set

ACKB = 0 clear

[2] IRIC clear

[7] IRIC clear

[6] ICDR read

(Data 1)

[4] IRIC clear

User processing

[5]

[3]

Figure 16.8 (1)

Example of Master Receive Mode Operating Timing

(MLS = ACKB = 0 and WAIT = 1)

SDA

(Master output)

SDA

(Slave output)

Bit 7

Bit 0

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit 7

Bit 6

IRIC

IRTR

ICDR

SCL

(Master output)

Data 3

Data 2

Data 1

Data 2

Data 3

Data 4

[9] IRIC clear

[7] IRIC clear

[9] IRIC clear

[7] IRIC clear

User processing

[5]

[8]

[5]

[8]

[6] ICDR read

(Data 2)

[6] ICDR read

(Data 3)

Figure 16.8 (2)

Example of Master Receive Mode Operating Timing

(MLS = ACKB = 0 and WAIT = 1)

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