tmp1941af TOSHIBA Semiconductor CORPORATION, tmp1941af Datasheet - Page 345

• Manufacturer Part Number: tmp1941af
• Description: 32-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

20. I/O Port Equivalent-Circuit Diagrams
•
•
I AD0–AD7, AD8–AD15, A8–A15, P44, P71, P73–P76, P80–P87, P91–P92, P94–P95, PA0–PA5
I A16–A23, A0–A7,
I
How to read circuit diagrams
standard CMOS logic ICs.
bit when the STBY[1:0] field in the SYSCR2 register is programmed to 01 (i.e., STOP mode) and the
Drive Enable (DRVE) bit in the same register is cleared. If the DRVE bit is set, the STOP signal remains
inactive (at logic 0).
The input protection circuit has a resistor in the range of several tens to several hundreds of ohms.
HWR
The circuit diagrams in this chapter are drawn using the same gate symbols as for the 74HCxx Series
The signal named STOP has a unique function. This signal goes active-high if the CPU sets the HALT
,
WAIT
Output Enable
Output Enable
Output Data
Input Data
,
Output Data
STOP
Input Data
BUSRQ
STOP
Output Data
RD
,
,
STOP
BUSAK
WR
,
R
TMP1941AF-305
/
Input Enable
W
Input Enable
, P37, P40–43
Vcc
Vcc
P-ch
N-ch
P-ch
N-ch
Vcc
TMP1941AF
Vcc
Output
Programmable
Pullup Resistor
Input/Output
Input/Output
2003-03-27