System Overview
3-16
Am186™CC/CH/CU Microcontrollers User’s Manual
PINSTRAPS (See
.)
RESERVED
RSVD_75
—
—
On the Am186CH HDLC microcontroller, the RSVD_75 pin
should be tied externally to V
SS
.
On the Am186CH HDLC microcontroller, pins RSVD_75,
RSVD_76, RSVD_80, RSVD_81, and RSVD_101–RSVD_104
and are reserved.
On the Am186CC and Am186CU microcontrollers, pins
RSVD_101–RSVD_104 are reserved unless pinstrap
{USBXCVR} is sampled Low on the rising edge of RESET.
On the Am186CU USB microcontroller, pins RSVD_119–
RSVD_116 are reserved.
All other reserved pins should not be connected.
RSVD_76
—
RSVD_80
—
RSVD_81
—
RSVD_101
UTXDPLS
RSVD_102
UTXDMNS
RSVD_103
UXVOE
RSVD_104
UXVRCV
RSVD_116
—
RSVD_117
—
RSVD_118
—
RSVD_119
—
POWER AND GROUND
V
CC
(15)
(16)
—
STI
Digital Power Supply pins supply power (+3.3 ± 0.3 V) to the
microcontroller logic.
V
CC
_A (1)
—
STI
Analog Power Supply pin supplies power (+3.3 ± 0.3 V) to the
oscillators and PLLs.
V
CC
_USB (1)
—
STI
USB Power Supply pin supplies power (+3.3 ±
0.3 V) to the
USB block.
V
SS
(15)
(16)
—
STI
Digital Ground pins connect the microcontroller logic to the
system ground.
V
SS
_A (1)
—
STI
Analog Ground pin connects the oscillators and PLLs to the
system ground.
V
SS
_USB (1)
—
STI
USB Ground pin connects the USB block to the system ground.
Table 3-7
Signal Descriptions (Continued)
Signal Name
1
Multiplexed
Signal(s)
Type Description
CH
CH
CH
CH
CU
CU
CU
CU
CC
CU
CH
CC
CU
CC
CU
CH
CC
CU
Содержание Am186 CC
Страница 1: ...Am186 CC CH CU Microcontrollers User s Manual Order 21914B...
Страница 4: ...iv Am186 CC CH CU Microcontrollers User s Manual...
Страница 18: ...Table of Contents xviii Am186 CC CH CU Microcontrollers User s Manual...
Страница 24: ...Introduction xxiv Am186 CC CH CU Microcontrollers User s Manual...
Страница 39: ...Architectural Overview Am186 CC CH CU Microcontrollers User s Manual 1 15 Figure 1 6 32 Channel Linecard CH CC...
Страница 40: ...Architectural Overview 1 16 Am186 CC CH CU Microcontrollers User s Manual...
Страница 86: ...System Overview 3 36 Am186 CC CH CU Microcontrollers User s Manual...
Страница 92: ...Emulator Support 4 6 Am186 CC CH CU Microcontrollers User s Manual...
Страница 112: ...DRAM Controller 6 8 Am186 CC CH CU Microcontrollers User s Manual...
Страница 134: ...Interrupts 7 22 Am186 CC CH CU Microcontrollers User s Manual...
Страница 186: ...Programmable I O Signals 9 8 Am186 CC CH CU Microcontrollers User s Manual...
Страница 200: ...Watchdog Timer 11 6 Am186 CC CH CU Microcontrollers User s Manual...
Страница 232: ...Asynchronous Serial Ports UARTs 13 24 Am186 CC CH CU Microcontrollers User s Manual...
Страница 242: ...Synchronous Serial Port SSI 14 10 Am186 CC CH CU Microcontrollers User s Manual...
Страница 264: ...High Level Data Link Control HDLC 15 22 Am186 CC CH CU Microcontrollers User s Manual...
Страница 332: ...Universal Serial Bus USB 18 34 Am186 CC CH CU Microcontrollers User s Manual...
Страница 348: ...Register Summary A 16 Am186 CC CH CU Microcontrollers User s Manual...
Страница 376: ...Index Index 18 Am186 CC CH CU Microcontrollers User s Manual...