IXXBB1 Fujitsu Microelectronics, Inc., IXXBB1 Datasheet - Page 9

• Manufacturer Part Number: IXXBB1
• Description: 32-bit Proprietary Microcontroller Cmos Fr60 Mb91301 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

• Except for Power supply, GND, and Tool pins
MB91302A
142 to 144,
132 to 139
18 to 25
PIN DESCRIPTIONS
8 to 15
1 to 5
28
29
30
31
32
Pin no.
178 to 180, 2,
MB91V301A
166 to 169,
172 to 175
21 to 24,
11 to 18
27 to 30
5 to 8
33
34
35
36
37
WR0/ (UUB) /
D00 to D07
D08 to D15
D16 to D23
D24 to D31
P00 to P07
P10 to P17
P20 to P27
Pin name
DQMUU
BGRNT
RDY
BRQ
P80
P81
P82
RD
I/O circuit
type
C
C
C
J
J
J
J
J
J
External data bus bits 0 to 7. It is available in the
external bus mode.
Can be used as ports in 8-bit or 16-bit external bus
mode.
External data bus bits 8 to 15.
It is available in the external bus mode.
Can be used as ports in 8-bit or 16-bit external bus
mode.
External data bus bits 16 to 23.
It is available in the external bus mode.
Can be used as ports in 8-bit external bus mode.
External data bus bits 24 to 31.
It is available in the external bus mode.
External ready input. The pin has this function when
external ready input is enabled.
General purpose input/output port. The pin has this
function when external ready input is disabled.
Acknowledge output for external bus release.
Outputs "L" when the external bus is released. The
pin has this function when output is enabled.
General purpose input/output port. The pin has this
function when output is disabled for external bus
release acknowledge.
External bus release request input. Input "1" to
request release of the external bus. The pin has this
function when input is enabled.
General purpose input/output port. The pin has this
function when the external bus release request
input is disabled.
External bus read strobe output.
External bus write strobe output. When WR is used
as the write strobe, this becomes the byte-enable
pin (UUB).
Select signal (DQMUU) of D31 to D24 at using of
SDRAM.
MB91301 Series
Function
(Continued)
9