upd75238 Renesas Electronics Corporation., upd75238 Datasheet - Page 88
upd75238
Manufacturer Part Number
upd75238
Description
4 Bit Single-chip Microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD75238.pdf
(190 pages)
- Current page: 88 of 190
- Download datasheet (2Mb)
88
Acknowledge detection flag (R)
Busy enable bit (R/W)
ACKD
BSYE
Examples 1. A command signal is output.
1
2
0
1
The transfer start instruction is executed.
The RESET signal is entered.
2. RELD and CMDD are tested to identify the types of received data and the types of processing
Condition for being cleared (ACKD = 0)
accordingly.
By setting WUP = 1, this interrupt routine is processed only when an address match is found.
CMD :
DATA :
ADRS :
1
2
The busy signal is output after the acknowledge signal in phase with the falling edge of SCK0.
Fig. 4-41 Format of Serial Bus Interface Control Register (SBIC) (3/3)
The busy signal is automatically disabled.
Busy signal output is stopped in phase with the falling edge of SCK0 immediately after clear
instruction execution.
SEL
SET1
SEL
SKF
BR
SKT
BR
• • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • •
• • • • • • • • • • • • • • • •
MB15
CMDT
MB15
RELD
!ADRS
CMDD
!DATA
; or CLR1 MBE
; RELD test
; CMDD test
; Command analysis
; Data processing
; Address decode
The acknowledge signal (ACK) is detected (in phase
with the rising edge of SCK0).
Condition for being set (ACKD = 1)
PD75238
Related parts for upd75238
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: