Analog Devices SHARC ADSP-21368 Hardware Reference Manual page 660

External Port Registers
Table A-3. EPCTL Register Bit Descriptions (Cont'd)
Bit
2
3
5–4
7–6
8
10–9
12–11
14–13
A-12
Name Description
B2SD Select Bank 2 SDRAM.
1 = Bank 2 SDRAM
0 = Bank 2 Non-SDRAM
B3SD Select Bank 3 SDRAM.
1 = Bank 3 SDRAM
0 = Bank 3 Non-SDRAM
EPBR External Port Bus Priority.
00 = Reserved
01 = DMA has high priority
10 = Core has high priority
11 = Rotating Priority
DMAPR DMA Channel Priority for CH0 and CH1.
00 = Reserved
01 = Reserved
10 = Fixed priority
11 = Rotating priority
Reserved
FRZDMA Arbitration Freezing Length for DMA.
0 = No freezing
1 = 4 Accesses
2 = 8 Accesses
3 = 16 Accesses
Reserved
FRZCR Arbitration Freezing Length for CORE Accesses.
0 = No freezing
1 = 4 Accesses
2 = 8 Accesses
3 = 16 Accesses
ADSP-21368 SHARC Processor Hardware Reference