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参数资料
| 型号： | IBM25405GP-3BA200C2 |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | RISC PROCESSOR, PBGA456 |
| 封装： | PLASTIC, BGA-456 |
| 文件页数： | 26/48页 |
| 文件大小： | 649K |
| 代理商： | IBM25405GP-3BA200C2 |
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PowerPC 405GP Embedded Controller
Data Sheet
Advance Information
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 32 of 48
galdsh5f
06/15/99 Preliminary
T2
HoldPri
Used by an external master to indicate the
priority of a given transfer (0 = high, 1 = low)
I
5V tolerant
Rcvr
n/a
A
1, 4
R3
BusReq
Used when 405GP needs to regain control of
peripheral interface from an external Master
O
5V tolerant
3.3V LVTTL
50
B
B1
PerErr
Used as an input used to record external
Master errors and external slave peripheral
errors
I
5V tolerant
Rcvr
n/a
A
1, 5
Internal Peripheral Interface (Number of pins = 15)
AE17
UARTSerClk
Serial Clock used to provide an alternative
clock to the internally generated serial clock.
Used in cases where the allowable internally
generated baud rates are not satisfactory. This
input can be individually connected to either
UART.
I
5V tolerant
3.3V LVTTL
n/a
A
1, 4
AE16
UART0_Rx
UART0 Serial in data
I
5V tolerant
3.3V LVTTL
n/a
A
1, 4
AF3
UART0_Tx
UART0 Serial out data
O
5V tolerant
3.3V LVTTL
50
A
6
AE18
UART0_DCD
UART0 Data Carrier Detect
I
5V tolerant
3.3V LVTTL
n/a
A
1, 4
AE3
UART0_DSR
UART0 Data Set Ready
I
5V tolerant
3.3V LVTTL
n/a
A
1, 4
AB4
UART0_CTS
UART0 Clear To Send
I
5V tolerant
3.3V LVTTL
n/a
A
1, 4
AF2
UART0_DTR
UART0 Data Terminal Ready
O
5V tolerant
3.3V LVTTL
50
A
6
AD16
UART0_RTS
UART0 Request To Send
O
5V tolerant
3.3V LVTTL
50
A
6
AD15
UART0_RI
UART0 Ring Indicator
I
5V tolerant
3.3V LVTTL
Rcvr
n/a
A
1, 4
AC1
UART1_Rx
UART1 Serial In data
I
5V tolerant
3.3V LVTTL
Rcvr
n/a
A
1, 4
AC2
UART1_Tx
UART1 Serial Out data.
O
5V tolerant
3.3V LVTTL
50
A
6
AC3
UART1_DSR
[UART1_CTS]
UART1 Data Set Ready.
or
UART1Clear To Send. To access this function,
software must toggle a DCR register bit.
I
5V tolerant
3.3V LVTTL
Rcvr
n/a
A
1, 4
Pin Functional Description 35mm, 456-Ball Enhanced Plastic Ball Grid Array Package (Part 9 of 14)
Multiplexed signals are shown in brackets following the first signal name assigned to each multiplexed ball.
Notes:
1. Receiver input has hysteresis
2. Must pull up (recommended value is 3k
to 3.3V, 10k to 5V)
3. Must pull down (recommended value is 1k
)
4. If not used, must pull up (recommended value is 3k
to 3.3V)
5. If not used, must pull down (recommended value is 1k
)
6. Strapping input, pull-up or pull-down required
Ball
Signal Name
Description
I/O
Type
Imped
ance
(
)
BHC
Notes
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