Hardware Reference Guide
SST-PFB3-ISA
52
Loading a Firmware Module
©2004 Woodhead Software & Electronics, Division of Woodhead Canada Limited
Document Edition: 1.0, Document #: 715-0078, Template Edition: 1.1, Template #: QMS-06-045
Use, duplication or disclosure of this document or any of the information contained herein is subject to the restrictions on page ii of this document.
C.1.3 Testing Card RAM
To test the card’s RAM, follow these steps:
1. Write the upper byte of the desired 20-bit base address to the AddrMatch Register.
2. Write the desired window size to the WinSize register (refer to Section 3.1.5,
WinSize Register
, for details). The default value in the window size is 0x3F.
3. Write 0x40 (MemEn) to the Control Register at offset 1.
4. Fill the shared memory with a test pattern.
Note
We recommend using a test pattern with a unique value for each word in
a given bank. In C, this could be:
~ bank.
5. Repeat steps 3-4 for all memory banks.
6. Verify the test pattern.
