Iebus Controller; Iebb Features - Renesas RZ/A Series User Manual

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
22.

IEBus Controller

22.1

IEBB Features

Channels
Table 22-1
Number of channels
Name
Channel index n
Register addresses
Table 22-2
Clock supply
Table 22-3
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
This module is only incorporated in the RZ/A1L.
IEBus (Inter Equipment Bus) is a small-scale digital data transfer system that transfers
data between units. To use IEBus with this LSI, an external IEBus driver and receiver
are necessary because they are not provided.
The internal IEBus controller of this LSI is of negative logic.
This microcontroller has the following number of channels of the IEBB.
Channels of IEBB
Throughout this chapter, the individual channels of IEBB are identified by the index
"n" (n = 0), for example, IEBBnBCR for the IEBBn bus control register.
All IEBBn register addresses are given as addresses offset from the base address
<IEBBn_base>.
The base address <IEBBn_base> of each IEBBn is listed in the following table:
Register base address <IEBBn_base>
IEBBn
IEBB0
The following clock is supplied to the IEBBn:
IEBBn clock supply
IEBBn
IEBB0
IEBB
1
IEBB0
<IEBBn_base>
FCFEF000
Clock
P0φ
22. IEBus Controller
Connected to:
Clock pulse generator
22-1