Spi Ac Output Characteristics Adjustment Register (Spodly) (Rz/A1Lu Only) - Renesas RZ/A Series User Manual

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
17.4.24

SPI AC Output Characteristics Adjustment Register (SPODLY) (RZ/A1LU only)

SPODLY is used to adjust the timing of the delay, hold, buffer on and buffer off times for data output. The timing should
be adjusted to suit the AC characteristics of the serial flash memory to be connected. Settings of this register should be
changed while the SSLF flag in CMNSR is 0; otherwise, the operation cannot be guaranteed. When writing, write to the
register as a 32-bit unit with bits 31 to 24 set to H'A5.
Bit: 31
Initial value:
0
R/W: W
Bit: 15
Initial value: 0
R/W: R/W
Bit Bit Name
31 to 24 GB[7:0]
23 to 16 ―
15 to 0 SPODLY[15:0]
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
30 29 28 27 26
GB[7:0]
0 0 0 0 0
W W W W W
14 13 12 11 10
0 0 0 0 0
R/W R/W R/W R/W R/W
Initial
Value R/W
All 0 W
All 0 R
All 0 R/W
25 24 23 22 21
- - -
0 0 0 0 0
W W
R R R
9 8 7 6 5
SPODLY[15:0]
0 0 0 0 0
R/W R/W R/W R/W R/W
Description
Guard
When writing, write to the register as a 32-bit unit with these bits set to
H'A5.
These bits are always read as 0.
Reserved
These bits are always read as 0. The write value should always be 0.
Output Characteristics Adjustment
Switches the timing of the delay, hold, buffer on and buffer off times for
data output.
The two values below are specifiable.
H'0000: Initial value
H'1111: The delay, hold, buffer on and buffer off times for data output are
lengthened.
Other than the above: Settings prohibited
17. SPI Multi I/O Bus Controller
20 19 18 17 16
- - - - -
0 0 0 0 0
R R R R R
4 3 2 1 0
0 0 0 0 0
R/W R/W R/W R/W R/W
17-30