HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 355

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14.2.4
Bit
Initial value
Slave Read/Write
Host Read/Write
ODR1 is an 8-bit read/write register to the slave processor, and an 8-bit read-only register to the
host processor. The ODR1 contents are output on the host data bus when HA
and IOR is low.
The initial values of ODR1 after a reset or standby are undetermined.
14.2.5
Bit
Initial value
Slave Read/Write
Host Read/Write
STR1 is an 8-bit register that indicates status information during host interface processing. Bits 3,
1, and 0 are read-only bits to both the host and slave processors.
STR1 is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 4 and Bit 2—Defined by User (DBU): The user can use these bits as necessary.
Bit 3—Command/Data (C/D): Receives the HA
and indicates whether IDR1 contains data or a command.
Bit 3: C/D
0
1
Output Data Register 1 (ODR1)
Status Register 1 (STR1)
ODR7
Description
Contents of IDR1 are data
Contents of IDR1 are a command
DBU
R/W
R/W
—
R
R
7
7
0
ODR6
DBU
R/W
R/W
—
R
R
6
6
0
ODR5
DBU
R/W
R/W
—
R
R
5
5
0
0
ODR4
input when the host processor writes to IDR1,
DBU
R/W
R/W
—
R
R
4
4
0
ODR3
R/W
C/D
—
R
R
R
3
3
0
ODR2
DBU
R/W
R/W
—
R
R
2
2
0
0
is low, CS
ODR1
R/W
IBF
—
R
R
R
1
1
0
(Initial value)
1
is low,
ODR0
OBF
R/W
—
R
R
R
0
0
0
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