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PDF TMP91FW27UG Data sheet ( Hoja de datos )
| Número de pieza | TMP91FW27UG | |
| Descripción | CMOS 16-Bit Microcontroller | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TOSHIBA Original CMOS 16-Bit Microcontroller
TLCS-900/L1 Series
TMP91FW27UG
TMP91FW27FG
Semiconductor Company
Free Datasheet http://www.datasheet4u.com/
1 page  
TMP91FW27
ADTRG (P53)
AN0~AN3 (P50~P53)
AVCC, AVSS
TXD0 (P90)
RXD0 (P91)
SCLK0/ CTS0 (P92)
TXD1 (P93)
RXD1 (P94)
SCLK1/ CTS1 (P95)
CPU (TLCS-900/L1)
10-bit 4-channel
AD
converter
SIO/UART/IrDA
(Channel 0)
XWA
XBC
XDE
XHL
XIX
XIY
XIZ
XSP
SIO/UART
(Channel 1)
WA
BC
DE
HL
IX
IY
IZ
SP
32 bits
SR F
PC
SCK (P60)
SO/SDA (P61)
SI/SCL (P62)
Serial bus
interface
(SBI)
Watchdog timer
(WDT)
High speed
oscillator
Clock gear
Low speed
oscillator
Port 0
Port 1
Port 2
TA0IN (P70)
TA1OUT (P71)
TA3OUT (P72)
TA4IN (P73)
TA5OUT (P74)
8-bit timer
(TMRA0)
8-bit timer
(TMRA1)
8-bit timer
(TMRA2)
8-bit timer
(TMRA3)
8-bit timer
(TMRA4)
8-bit timer
(TMRA5)
Special timer for CLOCK
Port 3
12-KB RAM
Port 6
128-KB Flash EEPROM
CS/WAIT
controller
(4-block)
Interrupt
controller
4-KB Boot ROM
16-bit timer
(TMRB0)
DVCC
DVSS
X1
X2
XT1 (P96)
XT2 (P97)
RESET
AM0
AM1
ALE
AD0~AD7 (P00~P07)
AD8/A8~AD15/A15 (P10~P17)
A0/A16~A5/A21 (P20~P25)
RD (P30) [ BOOT ]
WR (P31)
HWR (P32)
CS0 ~ CS2 (P40~P42)
NMI
INT0 (P63)
TB0IN0/INT5 (P80)
TB0IN1/INT6 (P81)
TB0OUT0 (P82)
TB0OUT1 (P83)
( ): Initial function after resert
[ ]: During resert
Figure 1.1 TMP91FW27 Block Diagram
91FW27-3
2007-11-02
Free Datasheet http://www.datasheet4u.com/
5 Page 
TMP91FW27
3.2.3 Operation Modes
3.2.3.1 Overview
The following three types of operation modes are available to control program/erase
operations on the flash memory.
Table 3.2.1 Description of Operation Modes
Operation Mode Name
Description
Single Chip mode
After reset release, the device starts up from the internal flash memory.
Single Chip mode is further divided into two modes: “Normal mode” is a mode in which user application
programs are executed, and “User Boot mode” is used to program the flash memory on-board.
The means of switching between these two modes can be set by the user as desired. For example, it can
be set so that Port 00 = “1” selects Normal mode and Port 00 = “0” selects User Boot mode. The user
must include a routine to handle mode switching in a user application program.
Normal mode
User Boot mode
Single Boot mode
Programmer mode
In this mode, the device starts up from a user application program.
In this mode, the flash memory can be programmed by a user-specified method.
After reset release, the device starts up from the internal boot ROM (mask ROM). The boot ROM includes
an algorithm which allows a program for programming/erasing the flash memory on-board via a serial port
to be transferred to the device’s internal RAM. The transferred program is then executed in the internal
RAM so that the flash memory can be programmed/erased by receiving data from an external host and
issuing program/erase commands.
This mode enables the internal flash memory to be programmed/erased using a general-purpose
programmer. For programmers that can be used, please contact your local Toshiba sales representative.
Of the modes listed in Table 3.2.1, the internal flash memory can be programmed in User
0
Boot mode, Single Boot mode and Programmer mode.
The mode in which the flash memory can be programmed/erased while mounted on the
user board is defined as the on-board programming mode. Of the modes listed above, Single
Boot mode and User Boot mode are classified as on-board programming modes. Single Boot
mode supports Toshiba’s proprietary programming/erase method using serial I/O. User
Boot mode (within Single Chip mode) allows the flash memory to be programmed/erased by
a user-specified method.
Programmer mode is provided with a read protect function which prohibits reading of
ROM data. By enabling the read protect function upon completion of programming, the
user can protect ROM data from being read by third parties.
91FW27-9
2007-11-02
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TMP91FW27UG.PDF ] | |
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