TMP88CS34FG datasheet(98/215 Pages) TOSHIBA

98 / 215 page

TMP88CS34/CP34

2007-09-12

88CS34-98

(3) 1-word data transfer

Check the MST by the INTSBI interrupt process after an 1-word data transfer is

completed, and determine whether the mode is a master or slave.

a. When the MST is “1” (Master mode)

Check the TRX and determine whether the mode is a transmitter or receiver.

1. When the TRX is “1” (Transmitter mode)

Test the LRB. When the LRB is “1”, a receiver does not request data. Implement the

process to generate a stop condition (described later) and terminate data transfer.

When the LRB is “0”, the receiver requests next data. When the next transmitted

data is other than 8 bits, set the BC, set the ACK to “1”, and write the transmitted data

to the SBIDBR. After writing the data, the PIN becomes “1”, a serial clock pulse is

generated for transferring a next 1-word of data from the SCL pin, and then the 1-word

data is transmitted. After the data is transmitted, and an INTSBI interrupt request

occurs. The PIN become “0” and the SCL pin is set to low level. If the data to be

transferred is more than one word in length, repeat the procedure from the LRB test

above.

Figure 2.9.14 Example of when BC

= “000”, ACK = “1”

2. When the TRX is “0” (Receiver mode)

When the next transmitted data is other than of 8 bits, set the BC again. Set the

ACK to “1” and read the received data from the SBIDBR (reading data is undefined

immediately after a slave address is sent). After the data is read, the PIN becomes “1”.

A serial bus interface circuit outputs a serial clock pulse to the SCL to transfer next

1-word of data and sets the SDA pin to “0” at the acknowledge signal timing.

An INTSBI interrupt request occurs and the PIN becomes “0”. Then a serial bus

interface circuit outputs a clock pulse for 1-word of data transfer and the acknowledge

signal each time that received data is read from the SBIDBR.

Figure 2.9.15 Example of when BC

= “000”, ACK = “1”

SCL pin

SDA pin

Acknowledge

signal from a

receiver

567

INTSBI interrupt

request

Write to SBIDBR

SCL pin

SDA pin

Acknowledge

signal to a

transmitter

345

678

INTSBI interrupt

Read to SBIDBR

New D7

TMP88CS34FG bảng dữ liệu(PDF) 98 Page - Toshiba Semiconductor

TMP88CS34FG bảng dữ liệu(HTML) 98 Page - Toshiba Semiconductor

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

bảng dữ liệu tải về

Link URL