LSI Logic Confidential
SIO Register Descriptions
15-19
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
Where Input Clock is the SYSCLK divided by two plus the Prescale value
stored in the UARTn External Clock / Prescaler Register
(UARTn_PRESCALER), that is—
15.5 SIO Register Descriptions
This section describes the registers of the Serial Input/Output (SIO)
module in the DoMiNo chip. The SIO consists of the following modules:
•
One Serial Peripheral Interface (SPI) module
•
One Inter-Device Communications (IDC) module
•
Two UART modules
•
Two infrared interface (IR) modules
In this section the register addresses are shown as offsets from the
module base address. The module base address of all SIO registers is
0xBE0000.
The module base address itself is an offset from the Control Space base
address within the 16MB register address space selected by the host, as
explained in the Product Overview / General Description / Memory
Mapping section of this manual. Therefore, the physical address of a
specific register is the sum of the Control Space Base Address, the
module offset, and the register offset.
All SIO registers are readable and writable, unless mentioned otherwise.
All registers are implemented as 32-bit registers so that they fall on word
(32-bit) boundaries. They must be accessed through 32-bit CBus loads
and stores only.
Note:
Reserved (Rsvd) bits must always be written as 0 and are
undefined when read.
Divisor
InputClock
16 BaudRate
(
)
-----------------------------------------
=
InputClock
SYSCLK
2
DIV
+
--------------------------
=
Содержание DMN-8600
Страница 14: ...LSI Logic Confidential xiv Contents Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...
Страница 18: ...LSI Logic Confidential xviii Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...
Страница 64: ...LSI Logic Confidential 7 6 Memory Mapping Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...