Glossary

(In Alphabetical Order, Descending)

Acronyms	Full Name	Notes
AM	Applet Manager
APM	Applet Profile Manager
BCAT	Background Content Asymmetric synchronized delivery and Transmission
BCT	Boot Configuration Table
BNVIB	Binary NX Vibration
BPC	Board Power Control Manager	This is related to the PCV Services.
DMA	Direct Memory Access
EMMC pinout	Embedded Multi-Media Controller pinout
Eupld	Error upload services
ExeFS	Executable File System
Falcon	A microprocessor used in various Tegra specific engines like TSEC, NVDEC, VIC, etc.	See the manual for more information.
Flog	NES Golf, spelled backwards
GMMU	Graphics Memory Management Unit
GRC	Game Recording services
HID	Human Interface Device services
Homebrew ABI	Homebrew Application Binary Interface
IMKV	IM Key Value databases found in FS and NCM savedata archives
INI1	Part of the Package2 section containing built-in system modules
IPC Marshalling	Inter-Process Communication Marshalling
IRQ	Interrupt Request
Jpegdec	Refactored sysmodule for handling all JPEG decoding associated with capture services
LAN Adapter	Local area network adapter
LDN	Local device network services
NAX0	Nintendo AES XTS file system / file format	Long form name is known as the Advanced Encryption Standard XEX-based tweaked-codebook mode with ciphertext stealing file system / file format
NCA	Nintendo Content Archive
NCM	Nintendo Content Management services
NIM	Network Install Manager services
NPDM	Nintendo Program Descriptor Metadata
NRO	Nintendo Relocatable Object
NSO	Main executable format
NS	Nintendo Shell services
NV	Customized NVIDIA driver
Nvnflinger	Responsible for mediating the communication between vi and nvservices.
OMM	Operation Mode Manager, responsible for arbitrating the operation changes between docked and handheld modes	See AM Services for more information.
PCIe	Peripheral Component Interconnect Express services
PCV	Power Control / Voltage services
PK11	Encrypted binary stored in Package1.
PK21	Contains the Switch kernel and the built-in system modules
PMC	Power Management Controller
SD File System	Secure Digital File System
SMC	Secure Monitor Calls
SPL	Security Processor Liaison
SSL	Secure Sockets Layer services
SVC	Supervisor Call instruction
Secure RNG	Also known as the SPL Services
Services API	Services application programming interface
TMA	Target Manager
TSEC	Tegra Security Co-processor
Ukyo	Internal name for the Joy-Con firmware.
XCI	Nintendo Switch Gamecard Format