R01UH0822EJ0100 Rev.1.00
Page 232 of 1041
Jul 31, 2019
RX13T Group
15. Buses
15.
Buses
15.1
Overview
shows the bus configuration, and
lists the addresses
assigned to each bus.
P/E: Programming/Erasure
Table 15.1
Bus Specifications
Bus Type
Description
CPU bus
Instruction bus
Connected to the CPU for instructions
Connected to on-chip memory (RAM, ROM)
Operates in synchronization with the system clock (ICLK)
Operand bus
Connected to the CPU (for operands)
Connected to on-chip memory (RAM, ROM)
Operates in synchronization with the system clock (ICLK)
Memory bus
Memory bus 1
Connected to RAM
Memory bus 2
Connected to ROM
Internal main
buses
Internal main bus 1
Connected to the CPU
Operates in synchronization with the system clock (ICLK)
Internal main bus 2
Connected to the DTC
Connected to on-chip memory (RAM, ROM)
Operates in synchronization with the system clock (ICLK)
Internal
peripheral
buses
Internal peripheral
bus 1
Connected to peripheral modules (DTC, interrupt controller, and bus error monitoring section)
Operates in synchronization with the system clock (ICLK)
Internal peripheral
bus 2
Connected to peripheral modules
Operates in synchronization with the peripheral module clock (PCLKB, PCLKD)
Internal peripheral
bus 3
Connected to peripheral modules (CMPC)
Operates in synchronization with the peripheral module clock (PCLKB)
Internal peripheral
bus 6
Connected to ROM (P/E) and E2 DataFlash
Operates in synchronization with the FlashIF clock (FCLK)