參數(shù)資料
型號： MSC1201Y2RHHRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC36
封裝： GREEN, PLASTIC, QFN-36
文件頁數(shù)： 27/93頁
文件大?。?/td> 1093K
代理商： MSC1201Y2RHHRG4
MSC1200
MSC1201
MSC1202
SBAS317E APRIL 2004 REVISED MAY 2006
www.ti.com
33
Slave Operation
Slave operation is supported, but address recognition,
R/W determination, and ACK/NACK must be done under
software control. The Disable Clock Stretch (DCS) bit can
be set to disable clock stretching. When the DCS bit is set,
the device will no longer stretch the clock and will not
generate interrupts. This bit can be used to disable clock
stretch interrupts when there is no address match. This bit
is automatically cleared when a start or repeated start
condition occurs.
Transmit
Once address recognition, R/W determination, and
ACK/NACK are complete, the serial data to be transferred
can be written to I2CDATA. The data is automatically
shifted out based on the master SCL. After data
transmission, CNTIF is generated and SCL is stretched by
the MSC120x until the I2CDATA register is written with a
0xFFh. The ACK/NACK from the master can then be read.
Receive
Once address recognition, R/W determination, and
ACK/NACK are complete, I2CDATA must be written with
0xFFh to enable data reception. Upon completion of the
data shift, the MSC120x generates the CNT interrupt and
stretches SCL. Received data can then be read from
I2CDATA. After the serial data has been received,
ACK/NACK is generated by writing 0x7Fh (for ACK) or
0xFFh (for NACK) to I2CDATA. The write to I2CDATA
clears the CNT interrupt and clock stretch.
MEMORY MAP
The MSC120x contain on-chip SFR, Flash Memory,
Configuration Memory, Scratchpad SRAM Memory, and
Boot ROM. The SFR registers are primarily used for
control and status. The standard 8051 features and
additional peripheral features of the MSC120x are
controlled through the SFR. Reading from an undefined
SFR returns zero. Writing to undefined SFR registers is not
recommended and will have indeterminate effects.
Flash Memory is used for both Program Memory and Data
Memory; however, program execution can only occur from
Program Memory. Program/Data Memory partition size is
selectable. The partition size is set through HCR0 (in the
Configuration Memory), which is programmed serially.
Both Program and Data Flash Memory are erasable and
writable (programmable) in UAM. Erase and write timing
of Flash Memory is controlled in the Flash Memory Timing
Control register (FTCON, SFR 0EFh). As an added
precaution, a lock feature can be activated through HCR0,
which disables erase/write operation to 4kB of Program
Flash Memory or the entire Program Flash Memory in
UAM.
FLASH MEMORY
The page size for Flash memory is 64 bytes. The
respective page must be erased before it can be written to,
regardless of whether it is mapped to Program memory or
Data memory space. The MSC120x use a memory
addressing scheme that separates Program Memory
(FLASH/ROM)
from
Data
Memory
(FLASH/RAM).
Addressing of program and data segments can overlap
since they are accessed by different instructions.
The
MSC120x
have three hardware configuration
registers
(HCR0,
HCR1,
and
HCR2)
that
are
programmable only during Flash Memory Programming
mode.
The MSC120x allow the user to partition the Flash Memory
between Program Memory and Data Memory. For
instance, the MSC120xY3 contain 8kB of Flash Memory
on-chip. Through the hardware configuration registers, the
user can define the partition between Program Memory
(PM) and Data Memory (DM), as shown in Table 3,
Table 4, and Figure 20. The MSC120x families offer two
memory configurations.
Table 3. Flash Memory Partitioning
HCR0
MSC120xY2
MSC120xY3
DFSEL
PM
DM
PM
DM
00
2kB
4kB
01
2kB
6kB
2kB
10
3kB
1kB
7kB
1kB
11
(default)
4kB
0kB
8kB
0kB
Table 4. Flash Memory Partitioning Addresses
HCR0
MSC120xY2
MSC120xY3
DFSEL
PM
DM
PM
DM
00
000007FF
04000BFF
00000FFF
040013FF
01
000007FF
04000BFF
000017FF
04000BFF
10
00000BFF
040007FF
00001BFF
040007FF
11
(default)
00000FFF
0000
00001FFF
0000
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MSC1201Y2RHHT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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MSC1201Y3RHHRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Precision ADC & DAC w/8051 CPU & Flash RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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