UPD78F1201MC-CAB-AX Renesas Electronics America, UPD78F1201MC-CAB-AX Datasheet - Page 809
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UPD78F1201MC-CAB-AX
Manufacturer Part Number
UPD78F1201MC-CAB-AX
Description
MCU 16BIT 78K0R/LX3 30-SSOP
Manufacturer
Renesas Electronics America
Series
78K0R/Ix3r
Datasheet
1.UPD78F1201MC-CAB-AX.pdf
(1067 pages)
Specifications of UPD78F1201MC-CAB-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
40MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Remark
The main processing of the slave operation is explained next.
Start serial interface IICA and wait until communication is enabled. When communication is enabled, execute
communication by using the communication mode flag and ready flag (processing of the stop condition and
start condition is performed by an interrupt. Here, check the status by using the flags).
The transmission operation is repeated until the master no longer returns ACK. If ACK is not returned from the
master, communication is completed.
For reception, the necessary amount of data is received. When communication is completed, ACK is not
returned as the next data. After that, the master generates a stop condition or restart condition. Exit from the
communication status occurs in this way.
Conform to the specifications of the product that is in communication, regarding the transmission and
reception formats.
No
No
No
ACKE = WTIM = 1, SPIE = 0
IICCTL0 ← 0XX011XXB
IICCTL0 ← 1XX011XXB
Clearing communication
IICWL, IICWH ← XXH
Clearing ready flag
direction flag = 1?
direction flag = 1?
Communication
Ready flag =
Communication
Communication
mode flag = 1?
Communication
Setting IICRSV
mode flag = 1?
SVA ← XXH
IICF ← 0XH
Writing IICA
ACKD = 1?
WREL = 1
Setting port
Setting port
mode flag
IICE = 1
START
Yes
Yes
Yes
Yes
Yes
No
Figure 14-30. Slave Operation Flowchart (1)
1?
CHAPTER 14 SERIAL INTERFACE IICA
No
No
Yes
Starts
transmission.
Selects a transfer clock.
Sets a local address.
Sets a start condition.
Setting of the port used alternatively as the pin to be used.
First, set the port to input mode and the output latch to 0 (see 14.3 (8) Port mode register 6 (PM6)).
Set the port from input mode to output mode and enable the output of the I
(see 14.3 (8) Port mode register 6 (PM6)).
User’s Manual U19678EJ1V1UD
No
Clearing ready flag
direction flag = 1?
Communication
Communication
mode flag = 1?
Ready flag =
Reading IICA
WREL = 1
Yes
Yes
Yes
1?
No
No
Starts
reception.
2
C bus
807
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