Artesyn MVME2502, Инструкция по установке и эксплуатации, Страница: 143 / 164

Chapter 7
MVME2502 Installation and Use (6806800R96D)
143
Programming Model
7.1 Overview
This chapter includes additional programming information for the MVME2502.
7.2 Reset Configuration
The MVME2502 supports the power-on reset (POR) pin sampling method for processor reset
configuration. Each option and the corresponding default setting are described in the
following table.
Table 7-1 POR Configuration Settings
CONFIG CONFIG PINS CONFIG SELECTION REMARKS
1 CCB Config LA[29:31] 000 41: CCB CLOCK-400 MHz
2 DDR PLL Config TSEC_1588_CLK_O
UT
TSEC_1588_PULSE_
OUT1
TSEC_1588_PULSE_
OUT2 001 8:1 DDR PLL-800 MHz DDR rate is twice the
value of the DDR
controller frequency,
which is then divided by
two through the
software.
3 Core 0 PLL LBCTL, LALE
LGPL2/LOE/LFRE 110 3:1 CORE CLOCK PLL
(1200 MHz) For 1200 MHz board
configuration
100 2:1 CORE CLOCK PLL (800
MHz) For 800 MHz board
configuration
4 Core 1 PLL LWE0, UART_SOUT1 110 3:1 CORE CLOCK PLL
(1200 MHz) For 1200 MHz board
configuration
100 2:1 CORE CLOCK PLL (800
MHz) For 800 MHz board
configuration
5 CPU Boot
Config LA27, LA16 10 e500 core 0 is allowed to
boot without waiting for
configuration by an
external master, while
e500 core 1 is prevented
from booting until
configured by an external
master or the other core.