SAF82532N10V32A Infineon Technologies, SAF82532N10V32A Datasheet - Page 40

• Manufacturer Part Number: SAF82532N10V32A
• Description: IC CONTROLLER 2-CH SER 68-PLCC
• Manufacturer: Infineon Technologies

Specifications of SAF82532N10V32A

• Controller Type: Serial Communications Controller (SCC)
• Interface: Serial
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 8mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: SAF82532N10V32A; SAF82532N10V32AIN

SAB 82532/SAF 82532
Basic Functional Principles
2.2
FIFO Structure
In both transmit and receive direction 64-byte deep FIFO’s are provided for the
intermediate storage of data between the serial interface and the CPU interface. The
FIFO’s are divided into two halves of 32-bytes. Only one half is accessible to the CPU or
DMA controller at any time.
Organization of the FIFOs and access to their contents depends on the selected serial
mode. For detailed information, refer to description of RFIFO and XFIFO in
chapters 10.1, 10.2 and 10.3. In case 16-bit data bus width is selected by fixing pin
WIDTH to logical ‘1’ word access to the FIFOs is enabled. Data output to bus lines
D0 … D15 as a function of the selected interface mode is shown in figure 20 and 21. Of
course, byte access is also allowed.
The effective length of the accessible part of RFIFO can be changed from 32 bytes
(RESET value) down to 1 (ASYNC and BiSYNC mode) or 2 (HDLC mode) bytes.
In version 1, only threshold 32 is available in HDLC mode.
Figure 17
FIFO Word Access (Intel mode)
Semiconductor Group
40
07.96