HD64F2145 datasheet(454/829 Pages) RENESAS

454 / 829 page

Rev. 2.0, 08/02, page 414 of 788

16.3.6

2C Bus Status Register (ICSR)

ICSR consists of status flags. Also see tables 16.4 and 16.5.

Bit

Bit Name

Initial Value R/W

Description

ESTP

R/(W)* Error Stop Condition Detection Flag

This bit is valid in I

2C bus format slave mode.

[Setting condition]

When a stop condition is detected during frame transfer.

[Clearing conditions]

• When 0 is written in ESTP after reading ESTP = 1

• When the IRIC flag in ICCR is cleared to 0

STOP

R/(W)* Normal Stop Condition Detection Flag

This bit is valid in I

2C bus format slave mode.

[Setting condition]

When a stop condition is detected after frame transfer

completion.

[Clearing conditions]

• When 0 is written in STOP after reading STOP = 1

• When the IRIC flag is cleared to 0

IRTR

R/(W)* I

2C Bus Interface Continuous Transfer Interrupt Request

Flag

Indicates that the I

2C bus interface has issued an interrupt

request to the CPU, and the source is completion of

reception/transmission of one frame in continuous

transmission/reception for which DTC activation is possible.

When the IRTR flag is set to 1, the IRIC flag is also set to 1

at the same time.

[Setting conditions]

2C bus format slave mode:

• When the ICDRE or ICDRF flag in ICDR is set to 1

when AASX = 1

Master mode or clocked synchronous serial format mode

with I

2C bus format, or formatless mode:

• When the ICDRE or ICDRF flag is set to 1

[Clearing conditions]

• When 0 is written after reading IRTR = 1

• When the IRIC flag is cleared to 0 while ICE is 1

HD64F2145 Datasheet(PDF) 454 Page - Renesas Technology Corp

HD64F2145 Datasheet(HTML) 454 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL