SAB82525H-V21 Infineon Technologies, SAB82525H-V21 Datasheet - Page 19

• Manufacturer Part Number: SAB82525H-V21
• Description: IC CONTROLLER SERIAL 44-MQFP
• Manufacturer: Infineon Technologies

Specifications of SAB82525H-V21

• Controller Type: Serial Communications Controller (SCC)
• Interface: Serial
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 8mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-BQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SAB82525H-V21; SAB82525H-V21IN

HSCX with SAB 80188 Microprocessor
A system with minimized additional hardware expense can be with a SAB 80188
microprocessor as shown in figure 4.
Figure 4
HSCX with SAB 80188 CPU
The HSCX is connected to the demultiplexed system bus. Data transfer for one serial channel
can be done by the 2-channel on-chip DMA controller of the SAB 80188, the other channel is
serviced by interrupt. Since the SAB 80188 does not provide DMA acknowledge outputs, data
transfer from/to HSCX is controlled via CS, RD or WR address information (A0 … A6) and the
DACKA, DACKB inputs are not used.
This solution supports applications with a high speed data rate in one serial channel with
minimum hardware expense making use of the on-chip peripheral functions of the SAB 80188
(chip select logic, interrupt controller, DMA controller).
Semiconductor Group
Latches
SAB 80188
CPU
INTn
A8 - A15
AD0 - AD7
PSCn
Transceiver
DRQ0
DRQ1
+5 V
System Bus
Memory
System
19
DRQTA
DRQRA
DACKA
ALE
DACKB
A0-A6
A0 - A6
CS
SAB 82525
HSCX
+5 V
INT
D0 - D7
D0-D7
IM1
Serial
Channel A
Serial
Channel B
ITS00949
SAB
SAB
SAF
SAF
82525
82526
82525
82526