Renesas RZ/T2M User Manual page 47
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Table 6-25: External BUS & SDRAM Configuration Option Links (4)
Signal name
BSC_CAS#_M
BSC_WR#_M
BSC_DQMLU_M
BSC_DQMLL_M
BSC_CKE_M
BSC_CKIO_M
Table 6-26 below details the function of the switches associated with the SDRAM.
Table 6-26: External BUS & SDRAM Configuration Switch Settings
SW6-1
ON
OFF
*
1
: SDRAM and Ethernet / Switch / EtherCAT port 2 cannot be used at the same time.
Table 6-27 below details the function of the jumpers associated with the SDRAM.
Table 6-27: External BUS & SDRAM Configuration Jumper Settings
Reference
Jumper Position
Shorted Pin 1-2
CN17
Shorted Pin 2-3
*1
: When using SDRAM, use the Ethernet switch (CN18-CN20) setting at 2-3.
R20UT4939EG0100 Rev. 1.00
Apr 20, 2022
MPU
MPU Peripheral Selection
Signal
BSC_CAS#
E3
P01_0
ETH2_MDIO
K5
P03_4
BSC_WR#
B4
P23_2
BSC_DQMLU
E6
P23_1
BSC_DQMLL_WE0#
BSC_CKE
H6 P01_1
ETH2_MDC
M1 P04_1
BSC_CKIO
Enable the external bus signal.*
Enables signals other than the external bus. (CAN, Emulator, I
Connect 3.3V Power rail to VCC1833_2. (When using SDRAM)
Connect 1.8V Power rail to VCC1833_2. (When using Ethernet port 2)
Fit
DNF
IC12.39
-
(SW6-1 = ON)
IC12.39
(SW6-1 = ON),
CN19
(2-3 pin short)
IC12.19
-
(SW6-1 = ON)
IC12.36
-
(SW6-1 = ON)
IC12.22
-
(SW6-1 = ON)
IC12.33
-
(SW6-1 = ON)
IC12.32
(SW6-1 = OFF),
-
CN18
(2-3 pin short)
IC12.25
(SW6-1 = ON)
-
R91
Explanation
1
Explanation
6.
Configuration
Destination Selection
Interface
Fit
/Function
IC23.17
-
JA3-A.49
-
IC16.50
-
IC23.16
-
JA3-A.26
-
IC23.39
-
JA3-A.47
-
IC22.A5
-
IC23.15
-
JA3-A.48
-
IC23.37
-
JA3-A.46
-
IC16.48
-
IC23.38
-
JA3-A.44
-
C, etc.)
2
*1
Page 47 of 87
DNF
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