Serial Flash Memory - Renesas RZ/A Series User Manual

RZ/A2M CPU Board RTK7921053C00000BE
2.3.2

Serial Flash Memory

RTK7921053C00000BE is equipped with standard serial flash memory x 1 shown in Table 2.3.1. Serial flash memory
is controlled by RZ/A2M on-chip SPI multi-I/O bus controller (SPIBSC). During boot (boot mode 3), data (programs)
can be read from the serial flash memory.
Moreover, jumper JP1 may be set to provide power to PVcc_SPI and serial flash memory. Be sure to set voltage to
3.3V.
Figure 2.3.1 shows serial flash memory block diagram. Moreover, Table 2.3.2 shows function settings for jumper JP1.
Table 2.3.1 Overview of Serial Flash Memory
Memory Device
Serial flash memory
RZ/A2M (U1)
QSPI0_SPCLK
QSPI0_SSL
QSPI0_IO3
QSPI0_IO2
QSPI0_IO[1:0]
QSPI1_SPCLK
QSPI1_SSL
QSPI1_IO[3:0]
ROMVcc
PVcc_SPI
RPC_RESET#
Note: Red characters
functions in use.
: Unmounted .
Figure 2.3.1 Serial Flash Memory Block Diagram
Table 2.3.2 Function Settings for Jumper JP1
Jumper
JP1 Supplies 3.3 V to PVcc_SPI and serial flash
memory. (Initial setting)
[Note] shows the setting function to select.
If jumper JP1 is errorneously set, the memory may be damaged. Pay full attention to the setting.
R20UT4397EJ0100 Rev.1.00
2018.10.11
Model
MX25L51245GXDI-08G
CLK_0
CS#_0
D3_0
D2_0
D[1:0]_0
ROMVcc
CLK_1
CS#_1
ROMVcc
D[3:0]_1
INT#
RPC_INT#
RPC_WP#
NC
RESET#
indicates
1-2
Operational
Voltage
3.3V
14
ROMVcc
CLK_0
CS#_0
ROMVcc
D3_0
D2_0
D[1:0]_0
CLK_1
CS#_1
D[3:0]_1
INT#
RESET#
3.3V ROMVcc 1.8V
1 3
JP1
Supplies 1.8 V to PVcc_SPI and serial flash
memory. (Setting prohibited)
2. Function specifications
Capacity
64MB 24 ball BGA
Serial Flash Memory (U2)
SCLK
CS#
NC/SIO3
WP#/SIO2
SO/SIO1, SI/SIO0
NC
NC
NC
NC
NC
NC
RESET#
2-3
Package
ROMVcc
VCC
2-17