h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 610

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 18A Host Interface X-Bus Interface (XBS)
18A.1.2 Block Diagram
Figure 18A.1 shows a block diagram of the HIF:XBS.
Rev. 3.00 Jan 18, 2006 page 582 of 1044
REJ09B0280-0300
CS2/ECS2
Legend:
IDR1:
IDR2:
ODR1:
ODR2:
STR1:
STR2:
HICR:
GA20
HIRQ1
HIRQ11
HIRQ12
HIRQ3
HIRQ4
HIFSD
IOW
CS1
CS3
CS4
HA0
IOR
Input data register 1
Input data register 2
Output data register 1
Output data register 2
Status register 1
Status register 2
Host interface control register 1
interrupt
request
Host
Internal interrupt signals
IBF4 IBF3
Figure 18A.1 Block Diagram of HIF:XBS
Ports 4, 8, B
Control logic
Internal data bus
IBF2 IBF1
A20 gate
control
Fast
IDR3:
IDR4:
ODR3:
ODR4:
STR3:
STR4:
HICR2:
HDB7 to HDB0
Input data register 3
Input data register 4
Output data register 3
Output data register 4
Status register 3
Status register 4
Host interface control register 2
interface
HICR2
ODR4
ODR2
STR4
STR2
ODR3
ODR1
HICR
STR3
Bus
STR1
IDR3
IDR4
IDR1
IDR2