R01UH0822EJ0100 Rev.1.00
Page 233 of 1041
Jul 31, 2019
RX13T Group
15. Buses
Figure 15.1
Bus Configuration
Table 15.2
Addresses Assigned for Each Bus
Address
Bus
Area
0000 0000h to 0000 FFFFh
Memory bus 1
RAM
0008 0000h to 0008 7FFFh
Internal peripheral bus 1
Peripheral I/O registers
0008 8000h to 0009 FFFFh
Internal peripheral bus 2
000A 0000h to 000B FFFFh
Internal peripheral bus 3
0010 0000h to 00FF FFFFh
Internal peripheral bus 6
E2 DataFlash memory and ROM
(for programming/erasure)
8000 0000h to FEFF FFFFh
Memory bus 2
ROM
(for reading only)
FF00 0000h to FFFF FFFFh
Bus error
monitoring section
Internal main bus 1
• • •
Internal main bus 2
Instruction bus
Operand bus
ROM
RAM
Internal
peripheral bus 1
Internal peripheral
buses 2 and 3
DTC (s)
ICLK
synchronization
CPU
Peripheral
module
Peripheral
module
Peripheral
module
DTC (m)
Memory
bus 1
Memory
bus 2
Internal
peripheral bus 6
Operation synchronized with
PCLKB and PCLKD
Operation synchronized
with FCLK
Note: The solid arrows indicate the directions of the access being requested of the bus master.
Note: DTC (m) is used for bus mastership, while DTC (s) is for register access.
ROM
(P/E)
E2
DataFlash