RZ/G1E
3. Pin Assignment
R01UH0544EJ0100 Rev.1.00
3-3
Sep 30,2016
3.3
Mode Pin Settings
Input fixed values for BSMODE pins. These values cannot be changed after power is supplied. The values of pins MD0
to MD14, MD18 to MD21, MDT0 and MDT1 are input upon power-on reset using the PRESET pin. Power-on reset
results in switching to a different function.
Legend:
"0" means logic low level input, "1" means logic high level input.
"—" means either "0" or "1", but its level must be fixed.
BSMODE
Reserved Fix to 0
MD0
Free-Running Mode or Step-Up Mode
0 Free-running
mode
1 Step-up
mode
MD3 MD2 MD1 Boot
Device
Selection
0
0
0
area 0 boot (boot from external MaskROM)
0
1
0
QSPI (48.75 MHz 16 KB transfer)
0 0 1 Reserved
0 1 1 Reserved
1
0
0
QSPI (39 MHz 16 KB transfer)
1
0
1
QSPI (78 MHz 16 KB transfer)
1
1
0
QSPI (39 MHz 4 KB transfer )
1 1 1 Reserved
MD4 Area
Division
0
Area 0: 64 Mbytes
1
Area 0: 128 Mbytes
MD5
Reserved, fixed to 1
MD7
MD6
Master Boot Processor Selection
0
0
Setting prohibited
0 1 Cortex-A7
boot
1 0 Setting
prohibited
1
1
Setting prohibited
MD8
EXBUS Area 0 Data Bus Width
0 8-bit
1 16-bit
MD9 EXTAL/XTAL
Pin
Setting
0
Inputs an external clock to the EXTAL pin
1
Connects a crystal resonator to the EXTAL/XTAL pin