參數(shù)資料
型號(hào)： MPC604E
廠商： Motorola, Inc.
英文描述： PowerPC 604e-TM RISC Microprocessor Technical Summary
中文描述： 的PowerPC 604e -商標(biāo)RISC微處理器技術(shù)總結(jié)
文件頁(yè)數(shù)： 29/34頁(yè)
文件大?。?/td> 117K
代理商： MPC604E
PowerPC 604e RISC Microprocessor Technical Summary
29
The 604e’s exceptions, and conditions that cause them, are listed in Table 2.
Table 2. Exceptions and Conditions
Exception
Type
Vector Offset
(hex)
Causing Conditions
Reserved
00000
—
System reset
00100
A system reset is caused by the assertion of either the soft or hard reset signal.
Machine
check
00200
A machine check exception is signaled by the assertion of a qualified TEA
indication on the 604e bus, or the machine check input (MCP) signal. If the
MSR[ME] is cleared, the processor enters the checkstop state when one of
these signals is asserted. Note that MSR[ME] is cleared when an exception is
taken. The machine check exception is also caused by parity errors on the
address or data bus or in the instruction or data caches.
The assertion of the TEA signal is determined by load and store operations
initiated by the processor; however, it is expected that the TEA signal would be
used by a memory controller to indicate that a memory parity error or an
uncorrectable memory ECC error has occurred.
Note that the machine check exception is imprecise with respect to the
instruction that originated the bus operation.
DSI
00300
The cause of a DSI exception can be determined by the bit settings in the
DSISR, listed as follows:
0 Set if a load or store instruction results in a direct-store exception;
otherwise cleared.
1 Set if the translation of an attempted access is not found in the primary
table entry group (PTEG), or in the rehashed secondary PTEG, or in the
range of a BAT register; otherwise cleared.
4 Set if a memory access is not permitted by the page or DBAT protection
mechanism; otherwise cleared.
5 If SR[T] = 1, set by an
eciwx
,
ecowx
,
lwarx
, or
stwcx
. instruction;
otherwise cleared. Set by an
eciwx
or
ecowx
instruction if the access is to
an address that is marked as write-through.
6 Set for a store operation and cleared for a load operation.
9 Set if an EA matches the address in the DABR while in one of the three
compare modes.
10 Set if the segment table search fails to find a translation for the effective
address; otherwise cleared.
11 Set if
eciwx
or
ecowx
is used and EAR[E] is cleared.
ISI
00400
An ISI exception is caused when an instruction fetch cannot be performed for
any of the following reasons:
The effective address cannot be translated. That is, a page fault occurred for
this part of the translation, so an ISI exception must be taken to retrieve the
translation from a storage device such as a hard disk drive.
The fetch access is to a direct-store segment.
The fetch access violates memory protection. If the key bits (Ks and Kp) in
the segment register and the PP bits in the PTE or IBAT are set to prohibit
read access, instructions cannot be fetched from this location.
An attempt is made to fetch an instruction from a segment configured as no-
execute; that is, SR[N] = 1.
An attempt is made to fetch an instruction from a block or page configured
as guarded, that is the G bit is set and translation is enabled, MSR[IR] = 1.
相關(guān)PDF資料
PDF描述
MPC755BPX350LE RISC Microprocessor Hardware Specifications
MPC755BRX350LE RISC Microprocessor Hardware Specifications
MPC755CPX400LE RISC Microprocessor Hardware Specifications
MPC755CRX400LE RISC Microprocessor Hardware Specifications
MPC755 RISC Microprocessor Hardware Specifications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC6071 制造商:International Rectifier 功能描述:
MPC616 制造商:Hammond Manufacturing 功能描述:6" X 16" MAGNET PANEL COVER
MPC-628-011B 制造商:FCI 功能描述:
MPC628726C 制造商:FCI 功能描述:- Bulk
MPC-6800 制造商:AAEON 制造商全稱(chēng):AAEON 功能描述:Intel Ultra Low Voltage Celeron Processor
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*