TMP91xy25FG Toshiba, TMP91xy25FG Datasheet - Page 91

• Manufacturer Part Number: TMP91xy25FG
• Manufacturer: Toshiba

Specifications of TMP91xy25FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: Ramless
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: -
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 49
• Power Supply Voltage(v): 3.0 to 3.6

Figure 3.6.7 Example of External Memory Connection (ROM uses 16-bit bus: RAM and I/O use 8-bit bus.)
3.6.3
TMP91C025
Connecting External Memory
In this example the ROM is connected using a 16-bit bus. The RAM and I/O are connected
using an 8-bit bus.
P6FC to 0 and disables output of the CS signal. To output the CS signal, the appropriate bit
must be set to 1.
Figure 3.6.7 shows an example of how to connect external memory to the TMP91C025.
A reset clears all bits of the port 6 control register P6CR and the port 6 function register
CS
CS
CS
A23
D15
WR
RD
D8
D0
D7
A0
to
to
to
0
2
1
91C025-89
CS
OE
Upper byte
ROM
CS
OE
Address bus
Lower byte
ROM
CS
OE WE
RAM
8-bit
CS
OE WE
TMP91C025
8-bit
2007-02-28
I/O