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參數資料
| 型號： | MC68040 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Errata and Added Information to MC68360 Quad Integrated Communication Controller User Manual Rev 1 |
| 中文描述： | 勘誤表和新增的資料MC68360四綜合通信控制器用戶手冊修訂1 |
| 文件頁數： | 7/28頁 |
| 文件大小： | 159K |
| 代理商： | MC68040 |
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MOTOROLA
MC68360 USER’S MANUAL ERRATA
7
11. Corrections for RCNT—Refresh Counter Period Description.
On page 6-64, section 6.13.1, make the following corrections:
a) ‘RFCNT’ in the equation should be ‘RCNT’.
b) ‘24 (decimal)’ in the example should be ‘23 (decimal)’.
c) ‘24 / (25 MHz / 16)’ in the example should be ‘(23 + 1) / (25 MHz / 16)’.
12. Typo on Global Memory Register.
On page 6-65, section 6.13.1, the following should replace the definition of PGS2-PGS0:
PGS2–PGS0—Page Size
This attribute determines the page size and AMUX for the DRAM controller (see Table 6-
9). For multiplexing information see Table 6-8 on page 6-59. The page size is the smallest
DRAM size the user needs to support page mode capability.
Delay Write QUICC Bit Definition.
On page 6-66, section 6.13.1, the description of the DWQ bit was not clear. The bit definition
should be replaced as follows:
DWQ—Delay Write for QUICC (DRAM Bank Only)
This attribute is used to add a clock to the assertion and negation of the CAS signal on
DRAM page hit write cycles. The write cycle lasts one additional clock in this case. This
attribute is applicable to an internal QUICC master and to an external MC68030/QUICC.
0 = Reads and writes are the same length.
1 = Add one clock to write cycles for DRAM banks.
NOTE
This bit must be set by the user if page mode is enabled for this
DRAM bank (PGME = 1), and when a zero wait state DRAM is
implemented by setting TCYC to be zero. If this is not done the
DRAM may latch invalid data during writes.
Table 6-9. DRAM Page Size
Address Lines Compared
for Page Hit or Miss
A10-25(32), A9-25(16)
A11-25(32), A10-25(16)
A11-25(32), A10-25(16)
A12-25(32), A11-25(16)
A12-25(32), A11-25(16)
A13-25(32), A12-25(16)
A13-25(32), A12-25(16)
A14-25(32), A13-25(16)
DRAM Size
PGS2-PGS0
# Address/Page in Page Compare
128k
256k
512k
1M
2M
4M
8M
16M
000
001
010
011
100
101
110
111
256 Addresses
512 Addresses
512 Addresses
1024 Addresses
1024 Addresses
2048 Addresses
2048 Addresses
4096 Addresses
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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| MC68040FE25V | 功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC68040FE33A | 功能描述:微處理器 - MPU 32B W/ CACHE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC68040FE33V | 功能描述:微處理器 - MPU 32B W/ CACHE MMU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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