p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 419

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 16.4 Flags and Transfer States (Master Mode)
[Legend]
0:
1:
—:
0
1
MST
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0↓
1
↓
↑
:
:
TRS
1
1
—
1
1
1
1
1
1
0
0
0
0
0
0↓
—
0-state retained
1-state retained
Previous state retained
Cleared to 0
Set to 1
BBSY
0
1↑
1
1
1
1
1
1
1
1
1
1
1
1
1
0↓
ESTP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
STOP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
IRTR
0
1↑
—
—
1↑
—
—
—
1↑
1↑
—
—
—
1↑
—
—
AASX
0↓
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AL
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1↑
0
AAS
0↓
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADZ
0↓
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Rev. 1.00 Sep. 21, 2006 Page 381 of 658
ACKB
0
0
1↑
0
0
0
0
0
—
—
—
—
—
—
—
—
Section 16 I
ICDRF
—
—
—
—
—
—
—
—
—
1↑
0↓
1
0↓
1↑
—
—
ICDRE
0
1↑
—
—
1↑
0↓
1
0↓
1↑
—
—
—
—
—
—
0↓
2
C Bus Interface (IIC)
REJ09B0310-0100
State
Idle state (flag
clearing required)
Start condition
detected
Wait state
Transmission end
(ACKE = 1 and
ACKB = 1)
Transmission end
with ICDRE = 0
ICDR write with the
above state
Transmission end
with ICDRE = 1
ICDR write with the
above state or after
start condition
detected
Automatic data
transfer from
ICDRT to ICDRS
with the above state
Reception end with
ICDRF = 0
ICDR read with the
above state
Reception end with
ICDRF = 1
ICDR read with the
above state
Automatic data
transfer from
ICDRS to ICDRR
with the above state
Arbitration lost
Stop condition
detected