Programming Model
3-51
3
DRAM Tester Control Registers
!
Caution
The tester should not be used by software. The trun and tsse
bits (bits 0 and 1 of the register at address $FEF80060) should
never be set.
32-Bit Counter
CTR32
CTR32 is a 32-bit, free-running counter that increments
once per microsecond if the CLK_FREQUENCY register
has been programmed properly. Notice that CTR32 is
cleared by power-up and local reset. It does not exist in
Revision 1 of Falcon.
Note
When the system clock is a fractional frequency, such as
66.67MHz, CTR32 will count at a fractional amount faster or
slower than 1MHz, depending on the programming of the
CLK Frequency Register.
ADDRESS
$FEF80100
BIT
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
NAME
CTR32
OPERATIO
N
READ/WRITE
RESET
0 PL
Содержание MVME2700 Series
Страница 1: ...MVME2600 2700 Series Single Board Computer Programmer s Reference Guide V2600A PG2 ...
Страница 13: ...xiv ...
Страница 15: ...xvi ...
Страница 67: ...1 50 Board Description and Memory Maps 1 ...
Страница 70: ...Introduction 2 3 2 Four 31 bit tick timers Two 64 bit general purpose registers for cross processor messaging ...
Страница 151: ...2 84 Raven PCI Host Bridge Multi Processor Interrupt Controller Chip 2 ...
Страница 215: ...3 64 Falcon ECC Memory Controller Chip Set 3 ...
Страница 277: ...Glossary GL 14 G L O S S A R Y ...