UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 480

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

440
SBIC
BSYE
7
ACKD
6
Figure 17-4 Serial Bus Interface Control Register (SBIC) Format
ACKE
5
ACKT
CHAPTER 17 CLOCKED SERIAL INTERFACE
4
CMDD
3
RELD
2
CMDT
1
RELT
0
CMDD
CMDT
ACKD
RELD
ACKT
ACKE
BSYE
RELT
0FF80H
Address
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Bus Release Signal Output Trigger
(Write-Only)
Command Signal Output Trigger
(Read-Only)
Bus Release Signal Detection Flag
(Read-Only)
Command Detection Flag (Read-Only)
Acknowlege Signal Output Trigger
(Write-Only)
Acknowlege Signal Enabling
(Read/Write)
Acknowlege Signal Detection Flag
(Read-Only)
Synchronous Busy Signal Enabling
(Read/Write)
Not output
Output
Not output
Output
Bus release signal not detected
Bus release signal detected. Serial bus
changes from low to high level while
SCK0 is high.
Command signal not detected
Command signal detected. Serial bus
changes from high to low level while
SCK0 is high.
Not output
Output
Automatic output disabled
Automatic output enabled
Not detected
Detected
Automatic output disabled
Automatic output enabled
On Reset
00H
R/W
R/W